Chapter 13: Dominating Grayfia

Bathed in the light pouring down from the ceiling, her silver hair cascaded straight down her back, shimmering. The woman, the owner of beautiful hair, slightly shifted her body in the uniform of the Kuō Gakuen High School Senior Division.

I remained seated at the edge of my bed, naked, continuing to gaze at her appearance.

Her strangely short wine-red skirt revealed her white, plump thighs. Her chest, emphasized even more by the small white blouse, was ample. However, the black blazer with an open structure around the chest, worn over the blouse, seemed to be of a similar size, without much pressure around the waist.

In essence, she was taller than the usual owner of the clothes, with a large bust and buttocks. And yet, there seemed to be no discomfort around the waist, which might make the girl who owned the clothes feel frustrated.

"You look good, Grayfia."

I voiced my thoughts, but Grayfia remained silent, standing still. She suppressed her embarrassment and stared at me with a resentful look, as if blaming me for making her wear the uniform. She seemed unaware that such an attitude itself was enhancing her charm.

"What's wrong? Come here."

With my words urging her, Grayfia, who had been standing near the door, finally started moving her feet. The uniform she wore was different from both the maid outfit and her usual clothes. She seemed to feel a sense of discomfort in her exposed and attractive legs, as her steps appeared somewhat awkward.

Slowly, she walked and stopped in front of me. When I lightly tapped the bed beside me with my hand, Grayfia followed my instructions and settled down on the bed. However, there was a strange distance between us. As soon as I realized that, I closed the gap immediately.

And as usual, I put my arm around her shoulders, drawing her closer.

"Turn this way."

"Mm...!"

Just as Grayfia said, she turned towards me, and I captured her lips. Unable to contain my excitement, our lips met forcefully, and my tongue immediately extended. I gazed at Grayfia's shimmering silver eyes, savoring the saliva as it mingled and stirred within our mouths. I licked her tongue as she tried to escape, and the sensation of our tongues rubbing against each other brought a smile to my face once again.

"Mm, haah..."

Her alluring voice, leaking from her mouth, aroused my loins, and I enjoyed the kiss.

After indulging in the touch until satisfied, I released our lips.

"Is your breathing not more irregular than usual?"

"...Perhaps it's just my imagination."

Saying so, Grayfia looked down, and it was clear that she was different from her usual self. It was probably due to the outfit she was wearing. Performing lewd acts while dressed in the school uniform of a teenage girl, and moreover, it was the uniform of the high school where my stepsister Rias attends. Even if I tried to convince myself that it was nothing, I couldn't avoid having mixed feelings. It seemed that the change in my emotions was evident.

"Ah..."

Lowering the hand that had been touching her shoulder, I reached down and touched Grayfia's buttocks over her uniform. Slowly and persistently, like a middle-aged man filled with desires in a molestation or compensated dating scenario. Grayfia couldn't condemn me; she could only endure.

Whispering gently in Grayfia's ear, I said,

"Well then, let's receive today's report while connected, shall we?"

"Yes."

Grayfia, who seemed to have regained her composure, stood up and began to act.

Straddling over me, lying on my back on the bed, Grayfia skillfully accepted my other self. She remained dressed in the uniform. She pushed aside her underwear and took my shaft into her vaginal opening, deep to the base. In this way, assuming the position of cowgirl, she began moving her hips up and down.

Her underwear was shifted, and she had taken my shaft deep into her vaginal opening to the base. In that position, she began moving her hips up and down in a cowgirl position.

"What was the result of the discussion earlier?"

While being pleasured by Grayfia's tight and soft vagina, I spoke to her. Despite her usual attitude, Grayfia opened her mouth and replied.

"It has been decided that we will determine whether you will be engaged through a rating game."

The information I received was as expected.

In the Underworld, there is a form of entertainment called a rating game. It involves two factions, allies and enemies, battling on a battlefield created in a different dimension. The winner is determined by fulfilling victory conditions. Only the king himself and his servants can participate in the battles. From our Riser Phoenix faction, I, as the king, and fifteen of my servants can participate.

"What are the rules?"

Although it is called a rating game, the rules can vary. Some games focus on pure combat strength, while others have unique rules like capturing flags on the field. So, it's not simply about being stronger to win.

"It's a normal rule."

The normal rule means that all participants enter the field at once, and the victory is decided by defeating or forcing the opponent's king to surrender. While strategy plays a role, individual combat abilities greatly influence the game.

"When is the game scheduled?"

As I stretched out my hands, Grayfia reluctantly held my hand. Our fingers intertwined, a lovers' hold. While moving her hips and sucking my shaft with her entire vagina, Grayfia answered my question.

"It's in ten days."

I thought it was a long time. But I also understood that it was necessary and didn't voice my thoughts.

Normally, only adult devils can participate in rating games. Riser, who is already an adult, is an experienced player, and except for intentionally losing in hospitality, he has been undefeated so far.

The reason for his strength lies in his nature as a phoenix. The Phoenix's ability to resurrect immediately after death gives Riser unparalleled strength in the game. To defeat a Phoenix, one must either deliver a powerful blow for an instant kill or keep defeating them repeatedly until they are mentally exhausted.