Harry Potter and BBPS Reborn: Chapter 4: Sisters in All But Blood

August 17, 1988: Glimpses of Shadows and Sunlight

The summer sun draped Potter Manor in warm gold, while a cooling wind heralded the nearing autumn. Harry James Potter, an eight-year-old with unruly black hair and sharp green eyes, sat in the manor’s second-floor library. Though the day was bright, Harry’s thoughts circled the darker corners of the Big Brother Protection System (BBPS) he’d gradually uncovered.

He was studying a new interface that had appeared after an unsettling dream. The dream involved some monstrous version of himself, rampaging in a cold, empty world—like a twisted reflection of all he held dear. When he awoke, the BBPS had flashed a short message:

BBPS Notification:
“User has unlocked partial knowledge of an auxiliary system: Big Brother Avenger System (BBAS). Activation conditions: Fail to protect Lani. Lani’s death. If triggered, user’s mission is vengeance.”

Harry’s heart had clenched. The mere notion that his sister, Lani, might die wrenched his gut. The BBPS had always championed protecting Lani at all costs, from emotional nurturance to literal rescue. Now, it appeared there existed a hidden fallback—a grim system dedicated to revenge if Harry’s primary mission failed. The description reminded him of a cursed object: unspeakably powerful, but only at the darkest cost.

The library’s hush was broken by the soft creak of the door. Lani stepped inside, hugging her plush phoenix “Fawkesy.” Despite the half-year difference in their ages—they were twins, after all—her presence often brought a radiant, childlike cheer that Harry found both comforting and motivating.

“Harry?” she called, noticing him at a desk cluttered with books, quills, and half-finished notes on potions. “You look worried. What’s wrong?”

Harry quickly closed the BBPS interface, not wanting to burden her with details of the dark alternate system. He forced a small smile. “Just thinking about… magical theory, that’s all.”

Lani tilted her head, suspicious. “You sure?”

He hesitated, then nodded. “Positive. You want to read together? Or maybe we can walk in the garden?”

She brightened. “Garden walk! Mum said she’s in a meeting with Dad, so we can explore the back hedges. The house-elves said they found a new nest of bowtruckles in the oak near the fountain.”

With a surge of relief, Harry rose and followed her out. The BBAS weighed heavily on his mind, but at least Lani was safe and cheerful. So long as she remained so, the grim system remained dormant.

Midday Light: A Stroll in the Garden

Outside, the fresh scent of grass and the gentle hum of insects eased Harry’s tension. The orchard behind Potter Manor was in full, luscious bloom, while the decorative fountain’s soft trickle lent a calming backdrop. Lani chatted animatedly about a new dueling spell she’d read about, occasionally asking Harry’s opinion.

However, a swirling presence at the edge of Harry’s consciousness kept him from fully relaxing: his Obscurus, a living embodiment of repressed magic that had manifested in a “friendly variant” after Harry purchased it from the BBPS’s “Harry Potter Verse Powers—Canon & Fanfiction” shop category. For a while, it had been simply a formless presence within him, a quiet companion he sometimes felt.

But that morning, the BBPS had also alerted him:

BBPS Alert:
“Obscurus manifestation stabilizing. Prepare for partial physical emergence. Monitor for emotional synergy.”

In plain words, the Obscurus was about to take shape. Harry tried not to let this worry overshadow his time with Lani. He considered telling her, but decided to wait until he had more concrete information.

Afternoon: Delving Deeper into the BBPS and New Purchases

After lunch (a light meal where Lily had stared at Harry with mild concern while James seemed lost in Ministry letters), Harry retreated to his room. He locked the door, inhaled, and summoned the BBPS once again. The swirling menu shimmered into view, pastel icons brightening his mental vision.

He mentally navigated to the Shop. Over the past few weeks, he had systematically acquired:

• Ki (Dragon Ball Universe) – Ongoing training improved his ability to channel life energy.

• Chakra (Naruto Universe) – Slowly learning to sense and manipulate it, though advanced jutsu required more knowledge.

• Reiatsu / Reiryoku (Bleach Universe) – Gave him rudimentary Kido potential, spiritual pressure sensing.

• Kagune (Tokyo Ghoul Universe) – A newly purchased ability that had only partially awakened. The BBPS had warned him it could manifest physically like a ghoul’s predatory organ, but Harry hoped to keep it concealed.

• Additional random powers from the DC, Marvel, Fairy Tail, and other fictional worlds. Most were set to “Minor Tier” because the system limited how much he could integrate at once, ensuring he didn’t lose control.

• Everyday Skills in cooking, baking, carpentry, budgeting, home repair, survival, and more. Harry had found them immensely practical—making bed-making, chores, and even meal preparation tasks surprisingly simple and efficient.

Harry’s Shop Points had dwindled after these purchases, but ongoing “hidden” quests from the BBPS kept replenishing them. Over time, he realized he could exploit the system by doing repeated tasks that aligned with “Protect Lani.” For example, if Lani was upset, comforting her often triggered a micro-quest that awarded points. Even small acts like ensuring she woke up on time for a meeting with Dumbledore sometimes yielded minor rewards.

A faint grin touched his lips. I suppose it’s a positive exploit, he mused. As long as it helps Lani, and maybe fosters peace in the family, there’s no harm.

With a mental command, he scrolled to a hidden sub-menu: Quest Creation. This had been a newly discovered function—he could propose tasks to the system, though it sometimes refused or adjusted them. He typed in his mind:

Request: “Strengthen relationship with parents. Goal: Unified Family. Reward: 500 Shop Points?”

The system beeped:

BBPS System:
“Quest accepted, but reward recalculated: 300 Shop Points base. Bonus possible if relationship scores with James and Lily reach above 60 each.”

Harry exhaled, somewhat satisfied. If forging a genuine bond with Lily and James eventually netted extra points, it was a win-win. He’d do it anyway for Lani’s sake—and, if he admitted it, for his own.

Late Afternoon: Obscurus Emergence

Just as Harry was about to close the interface, a violent tremor seized his chest. He gasped, stumbling backward until his legs hit the bed. A swirl of dark, shimmering vapor materialized in front of him, coalescing into a vaguely human shape.

His heart thundered. Is this the Obscurus? The swirling darkness took on a feminine outline, slender and short, reminiscent of a child around Lani’s height. Slowly, the haze faded, revealing a girl with unruly black hair that reflected an eerie, inky sheen, her eyes a deep emerald—just like Harry’s. Her features were similar to his own, though delicately feminine, with an ethereal glow about her skin. She wore a ragged dress of swirling darkness that shifted like smoke. She seemed equal parts timid and curious.

Harry stared, speechless. The figure locked eyes with him, lips trembling slightly as though she wanted to speak. At last, she whispered, in a voice that was soft yet resonant: “H…Hello.”

He swallowed, finally finding his voice. “You… you’re my Obscurus?”

She nodded shakily. “I think so. But… not evil. Not destructive. You… named me yours.”

A wave of relief mingled with awe. “We should name you properly,” he said gently. “I can’t keep calling you ‘Obscurus.’” He paused, mind racing. Then a name rose unbidden: “Hazel. Would you like… ‘Hazel’?”

A flicker of happiness brightened the girl’s eyes. “Hazel,” she repeated. “I like it.”

Harry’s heart soared—she was capable of feelings, of communication, far from the typical mindless parasitic force described in wizarding lore. He reached out, tentatively brushing her shoulder. She felt surprisingly solid. “Welcome, Hazel.”

Before they could exchange more words, the door creaked open. Lani—apparently unbothered by the locked handle (likely helped by a house-elf’s interference)—burst in. “Harry, are you—” She froze, staring wide-eyed at the dark-haired girl. “Wh-who…?”

Hazel shrank back, frightened. Harry quickly grabbed Lani’s hand. “It’s okay,” he assured both of them. “Lani, meet Hazel. She’s… well, she’s my Obscurus, but she’s a friend.”

Lani’s initial fear melted into wide-eyed excitement. “A new friend? A… a girl friend?” She almost squealed. “I’m Lani!” she greeted, stepping closer.

Hazel offered a hesitant smile, her posture stiff. “H-hello,” she whispered.

And just like that, Lani latched onto Hazel with a fierce hug, incognizant of the swirling shadows still drifting around Hazel’s form. “I’ve never met a living Obscurus. Wait—are you going to die in two weeks? That’s what the books say.”

Hazel’s expression flickered with panic. Harry cut in swiftly, “No, no—this is a different… variant. She’s stable, I promise.”

Lani exhaled in relief, gazing at Hazel with a thousand questions shining in her eyes. “So you’ll be my new sister?”

Hazel’s face softened. “Sister?”

Harry’s chest felt tight with emotion. He’d barely known Hazel for five minutes, but already Lani was claiming her as family. “If you’d like,” Harry said quietly, “we can… see how Mum and Dad react. But to me, yeah, you feel like a little sister.”

The flicker of joy that spread across Hazel’s face was unmistakable.

Early Evening: Parental Shock

Within the hour, the entire household was in an uproar. Lani had insisted they introduce Hazel to Lily and James immediately. Lily’s scream at the sight of what she recognized as an Obscurus had rattled the windows. James had nearly drawn his wand on reflex, shouting something about “dark magic.” House-elves scurried for cover.

However, Lani’s tearful pleas and Harry’s calm (if trembling) explanations stilled their hands. Slowly, Lily and James assessed the girl hovering by Harry’s side. Hazel managed a shy wave. Over the next tense minutes, Harry recounted how the Obscurus was stable, that she was not harmful, that her entire existence had fused with his magic in a symbiotic way. Lily’s eyes darted about, obviously recalling the standard wizarding lore—Obscurials typically died soon after forming. James paled, his breath ragged.

Finally, Lily let out a shaky sigh. “Y-you’re… absolutely sure you’re not going to... to break apart in violent bursts of magic?”

Hazel shrank back, tears pricking her eyes. Harry shot Lily a sharp glance, but it was Lani who stepped forward. “Mum! She’s not dangerous,” Lani insisted, throwing an arm protectively around Hazel. “Look at her—she’s scared. She wants a family, just like me, just like Harry!”

James ran a hand through his hair, his expression anguished. “Merlin’s beard. We just… we don’t know enough about this.”

Hazel quivered at the tension. Then, Lily—despite her trembling—stepped forward and placed a tentative hand on Hazel’s shoulder. “If… if Harry trusts you, and if you truly are stable, then…” She swallowed. “Then maybe we can help you.”

James, wide-eyed, gave a hesitant nod. “We can, er, research it more,” he said lamely. “But, yes, I—I suppose you can stay.”

Harry felt a wave of gratitude. He had expected far worse, perhaps an immediate attempt to banish or suppress Hazel. Instead, Lily and James, though clearly stunned, were at least open to the possibility. Lani beamed at them. Hazel stood speechless, eyes shimmering.

It was in that moment that Lily pressed a shaky kiss to Hazel’s forehead, voice barely above a whisper: “We’ll figure it out. You can… call us Mum and Dad if you’d like. We’ll see how this goes.”

Nightfall and a New Sister Named Hazel Potter

The rest of the evening was a blur of questions, discussions, and frantic references to old tomes about Obscurials. Meanwhile, Hazel’s physical form solidified further once Lily coaxed her into eating a small meal. She had never tasted real food before—her existence was magical in nature, but the system’s variant apparently allowed normal bodily functions. She devoured it with timid wonder, as though half-expecting it to vanish.

Eventually, Lily and James, faced with the tearful excitement of Lani and the resolute calm of Harry, made an impulsive but heartfelt decision. “We—” James began, glancing at Lily for confirmation. “We can’t treat you like some thing. You’re obviously… a little girl in many ways. If you want, Hazel, we’ll consider you… part of the family.”

Hazel’s eyes widened. “R-really?”

Lily offered a nervous smile. “Yes. We’ll… we’ll call you Hazel Potter. If that’s… if that’s all right with you.”

A moment of silence ensued, then Hazel burst into tears—tears of joy. Lani instantly rushed in to hug her, while Harry—heart swelling—stayed close, gently patting Hazel’s back. Lily blinked rapidly, probably holding back tears of her own.

Harry exhaled. He had never expected his parents to accept Hazel so quickly, but some part of him guessed that the “Girl Who Lived” aura around Lani influenced their tolerance. They adored Lani, and Lani adored Hazel. For once, that dynamic had a positive ripple effect for him, too.

August 18–20, 1988: Adjusting to a New Normal

Over the next few days, life in Potter Manor took on a strange, hopeful chaos. House-elves fussed over Hazel, uncertain how to address a living Obscurus turned “child.” Lily spent hours in the library, scouring dusty volumes about magical anomalies. James wrote letters to magical researchers—though carefully omitting the finer details to avoid scandal.

Lani wasted no time forging a close bond with Hazel: they played dress-up, giggled over bedtime stories, and teased Harry about every little thing. Hazel, for her part, clung to Lani’s side when not near Harry, eyes alight with wonder as she discovered the taste of ice cream, the softness of blankets, and the myriad feelings that accompanied physical existence.

For Harry, seeing Hazel’s enthusiasm for life was a balm. Yet tension lurked beneath the surface: the newly discovered BBAS (Big Brother Avenger System) frightened him, as it implied a grim future if Lani died. He resolved to keep that knowledge to himself. The best way to never activate BBAS was to ensure Lani—and now Hazel—stayed safe.

And so the BBPS updated:

Primary Task: Protect Lani and Hazel.
Objective: Foster a loving, safe environment for both.
Failure Condition: Lani or Hazel suffers catastrophic harm or death.

Harry read that notice with steely determination: he would never let them come to harm.

August 21, 1988: The Pink Dress System Quest?

Morning light streamed through Lani’s bedroom window. Harry had come to pick up the girls for breakfast. Lani was rummaging in her wardrobe, while Hazel perched on the bed, watching in fascination. They both looked up as Harry knocked.

“Morning,” he greeted. “Mum wants us to—”

He trailed off, noticing the mischievous glint in Lani’s eyes. Hazel also wore a playful smirk. “Harry,” Lani cooed sweetly, “we were just discussing something important.”

Immediately, Harry’s instincts flared. “I don’t like that tone,” he muttered.

Hazel pouted adorably. “But big brother, we realized something… Lani and I, we’re younger sisters. But we never see you try on any fun clothes. We want you to be our little sister, just for a day. Because it’s not fair we always get to be the pretty girls, right?”

Harry’s cheeks flamed. The memory of Lani dressing him up in a cat costume a week or so ago flickered in his mind. He opened his mouth to object when Lani clasped her hands, eyes shining with that unstoppable puppy-dog appeal.

“Please, Harry?” she begged. “It’s just one day. You promised you’d do anything for us, didn’t you?”

Hazel chimed in softly, “And I’d love to have a big sister for once… the same way Lani does.”

The combined onslaught of their pleading expressions was unstoppable. Indeed, Harry recalled how he’d crumbled under Lani’s puppy-dog eyes last time. Now, with Hazel joining in, he never stood a chance. He sighed, cursing his weakness. “All right,” he muttered. “But just one day.”

The Dress-Up: Pink Frills, Makeup, and… Cat Appendages

Lani and Hazel squealed in delight, rummaging through a chest of clothes. They produced a pink, frilly dress, laced at the bodice with ribbons along the sleeves. Then came a blond wig with cat ears attached on top, a cat tail, and a pair of plush cat paws. Harry’s face burned. So it’s the cat thing again—except pink?

They ushered him behind a decorative screen. Lani insisted on helping him change, but Harry drew the line there. “I can do it myself!” he snapped, mortified. Giggling, the girls complied, waiting outside.

Sure enough, the garment fit well enough—Lani had an assortment of outfits in various sizes (the Potters never lacked for money or whimsical acquisitions). The skirt flared out around Harry’s thighs, stopping well above the knee, leaving him feeling terribly exposed. Next, he wriggled into the cat-paw gloves and the cat-paw boots that extended up his calves. The tail strapped to his waist, and the wig’s cat ears perched over his real hair. He spared a glance in the mirror and wanted to disappear.

“All done?” Lani teased from the other side of the screen.

Harry sighed. “Yes, but… can you at least not laugh too much?”

No promises. The moment he emerged, Lani clapped her hands, and Hazel’s mouth formed a silent “wow.” They circled him like predators admiring their catch. Lani even brandished a small makeup kit, leaning in to dab pink lipstick on Harry’s lips and a hint of blush on his cheeks. Hazel giggled, making sure the cat ears were straight.

When they finished, Harry’s reflection was… startling. He looked like a genuine cat-girl from some fantasy story: big pink bows accenting the outfit, a frilly collar, bright blond locks, cat ears perked up, and the plush tail swishing behind him. A swirl of conflicting emotions washed over him—embarrassment, amusement, and oddly enough, a tiny spark of enjoyment. He recalled how Lani’s previous cat costume fiasco had oddly cheered him up. This time, Hazel was part of it, forging a new bond.

“There!” Lani declared. “Our adorable sister! Just for the day!”

Hazel nodded vigorously. “Now we can show Mum and Dad,” she said with a mischievous grin.

Harry’s eyes widened in horror. “Wait… you’re not serious?”

But the girls were already guiding him toward the bedroom door. “Come on, little sis!” Lani chirped, ignoring his protests. Hazel tried to stifle giggles, but they bubbled out regardless. Feeling the heat of a thousand suns on his face, Harry let them drag him along.

In the Kitchen: A Surreal Family Breakfast

They marched down the corridor, every step making the plush cat boots squeak. Soon they reached the large kitchen, where Lily was instructing a house-elf on meal preparations. James sat at the table, reading the Daily Prophet. Both parents looked up—and froze. Total silence fell.

Lily’s eyes flicked from the cat ears to the pink frills, then to Harry’s flaming cheeks. James’s jaw slackened, the newspaper drifting from his grip. For a long moment, no one spoke, until Lani chirped, “Mum, Dad, meet your new daughter for the day! Isn’t she adorable?”

Harry’s embarrassment soared to unimaginable heights. He fought the urge to bury his face in his paws. Lily coughed delicately, struggling to remain composed. James, on the other hand, looked as though he was about to break into either protest or laughter—maybe both.

Finally, James sputtered, “H-Harry…?”

Hazel, ever so sweetly, corrected him, “That’s not Harry today, Dad. That’s Harriet.” She winked.

Harry shot her a mortified glare, but Lani dissolved into laughter. Lily pressed a hand over her mouth, stifling a giggle. “Well,” she said, voice trembling, “if Harriet wants a seat, we have bacon and eggs ready.”

James regained some composure, though a grin tugged at his lips. “I… you… do what you want,” he managed, turning back to the paper with a baffled shake of his head. Harry heard him mutter under his breath, “Traitor,” and realized James was addressing him silently. The irony of that notion twisted Harry’s stomach into a new wave of embarrassment.

In a final blow to Harry’s dignity, Lani patted the seat next to James. “Sit here, Harriet dear.”

Swallowing the urge to vanish, Harry obeyed, the tail swishing behind him. Lily served him a plate with trembling hands, biting back an amused smile. Hazel and Lani flanked him, each doting on “their new sister.”

Fireplace Surprise: Sirius Black and Remus Lupin Arrive

The entire scene was surreal enough. But mere minutes into breakfast, the Floo connection in the adjacent drawing room roared to life. Green flames danced in the grate, and moments later, Sirius Black—James’s longtime friend and Lani’s boisterous godfather—stepped out, followed by Remus Lupin, the mild-mannered werewolf and another of James’s close friends from Hogwarts.

They dusted off soot and strode into the kitchen. “Oi, Prongs!” Sirius called, using James’s old nickname. “We came unannounced, hope you don’t mind—Remus insisted I check on you after all those letters—” He stopped short, eyes landing on Harry in pink cat regalia.

Remus nearly choked on air. Sirius stared, blinked, and then let out a bark of incredulous laughter. “Merlin’s saggy—James, you had another girl while we weren’t looking?” He twisted to look at Remus. “Isn’t that Lily’s hair color? No, wait, that’s blond. I’m confused.”

James rolled his eyes dramatically, though his cheeks were tinged pink. “Shut up, Padfoot,” he muttered. “That’s… that’s Harry. Dressed up by these two devils.” He jerked a thumb at Lani and Hazel, who both beamed innocently.

Remus gave a curious tilt of his head. “Harry? Goodness, it’s been ages since we saw him.” Then he frowned. “Wasn’t he a toddler last time we visited, Sirius? Right after that fiasco with—uh—Voldemort?”

Sirius nodded, gaze flicking guiltily to James. “We… we might’ve lost contact.” A swirl of regret tinted his features. “But hey, mate,” he said more gently to Harry, “sorry for the whole ignoring you for years thing. You look… interesting?”

Harry, cheeks blazing, managed a strained smile. “Hi, Sirius. Hi, Remus.” He didn’t want to dredge up bitterness—life was complicated enough. Nonetheless, he felt the sting of being forgotten.

Before tension could fester, Lily swept in with a bright smile. “Sirius, Remus, lovely to see you. We were just about to have breakfast. Care to join us?”

Sirius smirked. “Sure, if Harriet doesn’t mind.” He winked at Harry.

Lani giggled, while Hazel offered a conspiratorial grin. James exhaled, pinching the bridge of his nose. But Lily, determined to preserve manners, ushered them all to the table, conjuring extra chairs.

Triumphant Declaration: “Potter Girls Rule!”

Once everyone was seated—Sirius and Remus sporting wide grins at Harry’s cat-ears, and James looking resigned—Lily attempted to maintain some normalcy. She asked about Remus’s health, Sirius’s recent mischief, and so on. Lani and Hazel, however, had other ideas.

They exchanged a knowing look. In unison, they tapped Harry’s shoulder. Confused, he turned. Their eyes sparkled. Lani counted softly, “One… two… three!”

Then, all three children—Hazel, Lani, and a flustered but strangely amused Harry—threw their arms around each other and chorused, “Potter girls rule!”

The words left Harry’s mouth almost reflexively—he had been teased into it, but a surprising warmth bloomed in his chest. He embraced his sisters, feeling their giggles vibrate against him. Lily gasped, touched by the display. James sputtered, “Girls? Harry, you—”

Sirius roared with laughter, slapping his knee. “Prongs, you old dog, you’re outnumbered!” Remus, calmer but equally entertained, hid a grin behind his cup of tea. Lily looked at the trio, eyes misting with an unexpected tenderness.

In that moment, a soft chime echoed in Harry’s mind: the BBPS had updated. A wave of warmth washed over him, accompanied by a mental message:

BBPS Update:
“User has bravely embraced love and unity with siblings. +6,000 Shop Points. Interface color updated to Pink (temporary) in celebration.”

Harry’s eyes widened, and an involuntary flush crept to his cheeks that had nothing to do with embarrassment. A swirl of pink sparkles danced at the edge of his vision—a playful effect from the system. The BBPS’s interface even let out a girlish giggle in his mind. They changed the entire UI color to pink?! he thought in exasperation.

Lani and Hazel must have seen a brief flicker of confusion on Harry’s face, because they whispered, “Everything okay?”

He nodded, smiling. “I… I just got a special reward,” he said cryptically. Both girls took that as a sign of success and hugged him tighter.

Lily beamed. James, though faintly mortified, conceded a small smile. Sirius and Remus continued ribbing him. For a brief, precious moment, the kitchen bustled with laughter and familial warmth—Harry in a pink cat costume, flanked by two gleeful little sisters, and a houseful of relatives forging a new memory.

The Rest of the Day: From Cat-Girl to Brotherhood… or Sisterhood

Once Sirius and Remus left (after a round of teasing and half-serious apologies for neglecting Harry in the past), life at the manor settled. Harry, still wearing the cat-girl attire, chose not to change—partly out of resignation, partly out of an odd sense of camaraderie. Lily’s earlier shock morphed into amusement; she referred to them as her “three daughters” at one point, making Hazel and Lani squeal in delight and causing Harry to blush scarlet.

By lunchtime, Harry found he was actually… having fun. Lani and Hazel took him around the manor, playing at being sisters who planned to overthrow the “male monarchy” (James), or so their silly fantasies went. They dashed in and out of secret corridors, giggling as they teased the father who was, in Lani’s eyes, “the only man left in the house.” Lily watched from afar, sometimes with a wistful expression, perhaps remembering a time she and her sister—Harry’s deceased aunt, Petunia—might have been close, but never were.

Late Evening: Seeking Comfort in Sisterhood

Night fell quietly. After dinner, Lani and Hazel announced they were going to bed early to exchange “sister secrets,” giggling all the while. Harry, finally free to change clothes, retreated to his room. Yet as he removed the pink frilly dress and cat ears, a pang of… something akin to loss stirred in him. The day, bizarre though it was, had been unexpectedly joyful.

He found a set of pajamas and was about to settle for the night when a gentle knock tapped his door. It was Hazel, eyes glowing softly. “Harry?” she asked. “Could… could you come to Lani’s room? We want to talk to you.”

He followed her. In Lani’s bedroom, the lights were low, the bed a plush sea of pillows and stuffed animals. Lani patted the space beside her. Hazel stood by the bed, hands clasped. Something serious lurked in their expressions.

“What is it?” Harry asked, sitting down.

Hazel took a breath. “We just… wanted to thank you. For letting us have fun, for not pushing us away. Especially me—I know I’m new and… strange, but you’re giving me a chance. And I don’t think I’d be here without you.”

Lani nodded vigorously. “Yeah! And we were wondering if you’d… stay here tonight? Like a sleepover? We can all… be siblings together. It’ll be fun!”

Harry’s heart warmed. “Sure,” he answered softly, a small grin forming. “I’d like that.”

A wave of relief brightened Hazel’s face. Lani cheered, scooting over to make room. They pulled blankets around them, Fawkesy the phoenix plush tucked between. Lani insisted on telling a silly bedtime story about a cat princess who saved a lost knight, Hazel chiming in with random details that made them all laugh. When the story ended, Lani fell asleep with her head on Harry’s shoulder, and Hazel curled up by his side, the faint swirl of darkness around her now soothed.

In that hush, Harry gazed at their sleeping forms. I have two little sisters now, he thought, amazed. The BBPS glowed faintly in his mind’s eye, a gentle pink warmth. For once, he felt content. The future was uncertain, but as long as Hazel and Lani thrived, he would see them through anything.

Across August 22 to September 17, 1988: A Month of Transition

Over the following month, the tapestry of life at Potter Manor grew richer. The arrival of Hazel had triggered a complex emotional ripple, from the initial shock and research about her survival to day-to-day domestic changes. Yet the household slowly adapted:

• Hazel’s Growing Presence

  • Day by day, Hazel learned what it meant to be a child with physical form. She discovered she needed no wand for certain feats—her magic, shaped by her Obscurus nature, manifested in swirling shadow-tendrils that she used carefully (often taught by Harry to avoid accidents).

  • Lily and James, while still occasionally showing flashes of anxiety, warmed to Hazel’s gentleness. They began introducing her to basic reading and arithmetic, akin to a child’s primary education. They even had her measured for proper clothes—an emotional moment where Hazel nearly cried at the idea of having clothes that were truly hers.

  • The family overcame their fear that an Obscurus would end in tragedy after Lily found a note in an ancient tome: “In extremely rare cases, an Obscurus can merge in synergy with a stable magical core, forming a self-aware, harmless entity.” This aligned with what was happening, further alleviating their worries.

• Lani’s Joy and Sisterly Antics

  • Lani delighted in Hazel’s presence. They became inseparable, from playing with dolls to practicing childish illusions. Together, they teased Harry mercilessly—though always good-naturedly—calling him “Sister Harriet” anytime they wanted to see him blush.

  • Lani continued to grow in her own magic. Dumbledore wrote sporadically, praising Lani’s progress, albeit from afar. The Headmaster remained busy, still unaware of the new family addition.

• Harry’s Expanding Powers and System Exploits

  • With the new 6,000 Shop Points from the day he embraced his “sisters,” Harry delved deeper into the BBPS Shop. He purchased additional everyday skills (bookkeeping, advanced survival, sewing mastery, artistic drawing) and advanced powers from multiple fictional universes—though he was cautious not to overburden himself.

  • He used Ki to strengthen his body, gradually increasing stamina. His Chakra control improved enough for rudimentary illusions. His Reiryoku training let him sense spiritual presences better. The Kagune from Tokyo Ghoul remained largely dormant, though occasional black-and-red tendrils flickered along his spine during intense emotion or in the Instant Dungeons.

  • He discovered more ways to “grind” quest points: for instance, doing father-son bonding attempts with James triggered micro-quests like “Share a conversation about your day” awarding 50 points. Helping Lily brew potions awarded 30 points. Over time, these small gains added up.

• Family Repairs

  • Spurred by the new BBPS quest to “Strengthen Relationship with Parents,” Harry made discreet efforts to connect. He assisted Lily in the greenhouse with potions ingredients. He joined James for short broom rides in the yard, though James was still far more used to guiding Lani. Gradually, their relationship scores rose, creeping closer to the 60/100 threshold that the system had indicated might yield a bonus.

  • Lily and James took small steps to treat Harry more kindly, no longer seeing him as just the overshadowed twin. Hazel’s presence also forced them to acknowledge that they had more than one gifted child.

• Dress-Up Days and Sleepovers

  • Periodically, Lani and Hazel would corner Harry, coaxing him into new outfits—sometimes cat-girl themed, sometimes just a frilly dress with ribbons. With time, Harry loosened up, finding their enthusiasm contagious.

  • In reciprocation, Harry taught them basic cooking skills he’d acquired via the “everyday skills” set. The three siblings prepared tea cakes for Lily’s birthday on September 2nd, surprising her with the treat.

Overall, the manor witnessed a delicate but uplifting transformation: four weeks of slow healing for old wounds, new bonds forging around laughter and acceptance, and the overshadowed boy gaining a sense of belonging through two devoted sisters.

Mid-September Climactic Scene: Another “Girls’ Day”—And a New Vow

By September 17, the final day of that month-long arc, the changes were undeniable. Hazel had become a beloved fixture in the family. Lily and James openly introduced her to select guests (though they avoided public announcements, mindful of how the wizarding world might react to an “Obscurus child”). Lani and Hazel led a cheerful existence, occasionally roping Harry into more cat or frilly outfits for comedic relief.

That morning, Hazel and Lani bounded into Harry’s room. They wore matching pink dresses and brandished a third set for him—light blue this time, with a fluffy white wig and soft cat ears. Harry, freshly awake, rubbed his eyes. “Morning…” he mumbled.

“Morning!” they chorused, then Lani extended the outfit with a brilliant smile. “One last time this month, big brother. Another day as our sister? Please?”

Hazel clasped her hands. “We had so much fun these weeks. We know tomorrow you’ll want to focus on your own training again, but… this is our last chance before autumn sets in!”

Harry couldn’t help but grin. Their joy was infectious. “All right, you troublemakers,” he said with feigned exasperation. “But only if you promise we can do a flight session tomorrow. I need to practice my broom work.”

“Deal!” Lani squealed. “Come on, let’s get you dressed up, Harriet!”

Hazel giggled. “Yes, Harriet 2.0.”

Embracing the Moment

Soon enough, Harry found himself in another girlish ensemble—soft pastel blues and an even fluffier cat tail than before. The wig’s white cat ears twitched comically with a small wire mechanism inside. Lani insisted on minimal makeup this time, just a dab of lip gloss, while Hazel proudly fitted a small ribbon around Harry’s tail.

They bustled downstairs to find Lily, James, and a few house-elves preparing brunch. Lily, upon seeing them, gave a wry smile—no longer startled by such displays. James coughed and turned a page in the Prophet, managing a clipped, “Good morning… Harriet,” but the corner of his mouth lifted.

The day passed in a pleasant whirl. They played a lighthearted magical hide-and-seek, read storybooks, and helped the house-elves with meal prep. Every so often, Lily cast an amused look at Harry, as though marveling that her overshadowed son had blossomed into such an affectionate sibling figure.

That evening, just before bedtime, Lily gathered the siblings in the living room. James joined, holding a box with a small bow on it. They exchanged glances, and Lily cleared her throat. “Harry, Lani, Hazel,” she began, voice trembling slightly. “Your father and I want to say how proud we are of you three… for supporting each other, loving each other, and brightening our home.”

James took over, pushing the box into Lily’s hands. “We… have something small for each of you. Think of it as… a family gesture.”

Inside, Lily withdrew three identical lockets, each with a small “P” engraved for Potter. She handed one to Lani, one to Hazel, and paused before giving the last to Harry. “We might not have been the perfect parents,” she whispered, tears glinting in her eyes, “but we love you all, and we want you to feel that. Hazel, you’re new, but… you’re ours. Lani, our precious daughter. Harry, our strong son… and occasional daughter,” she added with a half-laugh, half-sob.

Hazel sniffled, hugging Lily. Lani squealed and latched onto James. Harry stared at the locket resting on his palm, throat tight with emotion. He read the tiny letters inside the cover: Family Forever. With trembling hands, he fastened it around his neck. BBPS flickered a congratulatory message in his mind:

“Relationship Gains Achieved: Lily Potter – 65, James Potter – 60. Quest Complete: Strengthen Relationship with Parents. +300 Shop Points. Bonus +150 Shop Points for surpassing threshold.”

The swirl of pink in the interface glistened, and Harry felt an overwhelming sense of acceptance. He turned to Lily and James. “Thank you,” he said, voice shaky. “I… I love you too.”

A hush fell, thick with unspoken apologies and newly forged love. Lani, unable to contain herself, squeaked, “Potter family hug!” and all four soared into a tight embrace—Hazel included, timid tears rolling down her cheeks.

Nighttime: A Private BBPS Reflection

Later, after everyone retired, Harry stood alone in the corridor, dressed once again in pajamas. He fingered the locket resting against his chest. The pink-laced interface of the BBPS shimmered in his peripheral vision. He felt new quest notifications, Shop Point updates, and skill enhancements swirling at the edge of his consciousness, but for once, he let them rest.

He recalled the BBAS—the Avenger System. If Lani or Hazel ever died, that monstrous system would rise, demanding vengeance at the cost of Harry’s own life. That will never happen, Harry vowed silently, hand clenched into a fist. I will protect them both, no matter what.

At that thought, the interface pulsed once. A gentle message scrolled across:

BBPS Note:
“Primary Objective: Protect Lani Potter and Hazel Potter. Family bond remains the greatest shield against tragedy.”

Harry nodded to himself. Yes, he thought. I have Lani, Hazel, and even Mum and Dad now. Sirius and Remus are in the picture again too. I’m not alone.

Final Scene: September 17, 1988—Midnight Musings

In the dim moonlight, Harry quietly slipped into Lani’s room, where both Lani and Hazel slept soundly in their twin canopy beds. He moved to Hazel’s side, tucking the blanket around her shoulder. She stirred, opening her emerald eyes faintly. “Harry?” she whispered.

He offered a small smile. “Just checking on you. Sleep well, Hazel.”

A sleepy grin tugged her lips. “Night, big brother.”

He then tiptoed to Lani’s side, the older twin softly breathing, Fawkesy the plush phoenix clutched to her chest. He adjusted her pillow gently, heart brimming with devotion. As he turned to go, Lani’s eyes fluttered open. She mumbled something about “sister Harriet,” then dozed off again.

Harry suppressed a chuckle, stepping back into the corridor. Warm contentment glowed in his chest. However bizarre life might get, at least we have each other, he thought.

When he reached his own room, the BBPS gave a final chiming note:

“Chapter 4 Complete. Your progress has shaped a better future for the Potter family. Keep up the good work, dear big brother.”

A faint, musical giggle echoed, reminiscent of the newly pink-hued system’s voice. Harry smiled, letting the door close behind him. Tomorrow, he’d resume training, back to the role of big brother and guardian. But for tonight, he savored the knowledge that he had two sisters—Lani and Hazel—and a newly mended bond with his parents that glistened like a fresh sunrise.

In that peaceful hush, the moonlight cast a gentle silver glow across the boy who had once been overshadowed—now, a quietly resolute pillar for a most unusual and loving family.

Status Screen (End of Chapter 4)

Below is Harry’s updated status screen with newly relevant details, capturing changes from August 17 to September 17, 1988.

Name:

Harry James Potter

Age:

8

Title(s):

• The Unseen Savior (Real Boy Who Lived)

• Big Brother of Lani Potter and Hazel Potter

BBPS/BBAS Overview

• BBPS (Big Brother Protection System):

  • Primary objective: Protect and nurture Lani Potter and Hazel Potter.

  • Interface currently tinted pink due to Harry’s wholehearted embrace of sisterly love.

  • Shop Points balance:

    • Previous Gains: +6,000 (Embracing sisterhood moment), +300 (completing parental relationship quest) +150 (bonus).

    • Additional micro-quest points accumulated through daily tasks.

    • Exact total: Over 7,000 points (Harry has made various purchases in the last month, but he has a healthy surplus).

• BBAS (Big Brother Avenger System):

  • Condition: Inactive, hidden.

  • Activates only if Lani or Hazel dies, fueling unstoppable vengeance at cost of the user’s life.

  • Contains gruesome, dark powers. Currently locked since the primary mission (protect them) is not failed.

Relationships

• Lani Potter (Younger Twin Sister)

  • Affection: 100/100

  • Notes: Their closeness has only deepened. Frequent playful interactions. Lani adores Harry’s transformations into “Harriet.”

• Hazel Potter (Obscurus)

  • Affection: 100/100

  • Notes: Newly manifested, fully accepted as a younger sister. Manages swirling shadow magic in synergy with Harry. Relies on him for emotional security.

• James Potter (Father)

  • Affection: 60/100 (Improved)

  • Notes: Awkward but warming to Harry. Expresses gratitude for Harry’s role in uniting the family.

• Lily Potter (Mother)

  • Affection: 65/100 (Improved)

  • Notes: Growing maternal bond with Harry. Sees him stepping out of Lani’s shadow. Accepted Hazel as a daughter.

• Sirius Black & Remus Lupin

  • Affection: 40/100 (Tentatively Rebuilding)

  • Notes: Reintroduced into Harry’s life. Surprised but amused by his cat-girl antics. Regretful over past neglect.

• BBPS

  • Loyalty: 100/100

  • Notes: Continues to wholeheartedly support Harry’s mission.

Stats

(Some stats may have risen slightly from training and quests.)

• Strength (STR): 6 (Previously 5, due to Ki training gains)

• Dexterity (DEX): 7 (Increment from repeated physical activities, cat costume balancing, minor training)

• Endurance (END): 7 (Increment from daily chores, nighttime ID battles)

• Intelligence (INT): 24 (Up from 22 due to study & repeated reading sessions)

• Wisdom (WIS): 25 (Up from 23 due to maturity in decision-making & synergy with Occlumency)

• Charisma (CHA): 10 (Up from 8, reflecting improved interpersonal skills & confidence)

Unlocked & Ongoing Powers / Skills

• Gamer’s Mind & Gamer’s Body – Active, help regulate stress and injuries.

• Observe – Used frequently to gather info on objects/people.

• ID Create & ID Escape – Allows private training dungeons.

• Ki, Chakra, Reiatsu – Ongoing growth with practice.

• Kagune (Tokyo Ghoul) – Partially awakened; can manifest briefly in ID battles.

• Multiple Everyday Skills – Cooking, baking, carpentry, budgeting, sewing, etc.

• Master Legilimency & Natural Occlumency – Strengthening; Harry uses Occlumency to shield from external intrusion.

• Obscurus (Hazel) – Now a sentient companion, recognized fully as a family member.

(Skill Creation remains locked at 1,000 INT & WIS requirement.)

Current Quests & Achievements

• Primary Quest: “Safeguard Lani & Hazel” – Ongoing.

• Family Bonding Quest (Completed): Lily & James at 60+ affection.

• Misc. Micro-Quests: Various daily tasks awarding modest Shop Points.

Achievements This Chapter:

• “Potter Girls Rule!” – Embracing sibling identity and forging deeper family bonds.

• “Obscurus Acceptance” – Safely integrating Hazel into the Potter family.

End of Chapter 4