13: Chaotic World

Yuya looked at the situation with disbelief, he was very confused about what was happening.

Wasn't this an alternative Naruto world? The one where the Monster Apocalypse happened? How could there be buildings from the anime Fairy Tail!

Damn! Is this a crossover world? Is it true? If so, then I'm in deep trouble! This world is far more dangerous than I thought! Oh my god, why am I in this world, if it's a crossover world.

Besides Fairy Tail, what other anime is there? Is it Bleach? Or maybe One Piece? Don't tell me it's Dragon Ball? Could it be One Punch Man? Oh, is there demons? Don't tell me it's going to be Kimetsu No Yaiba? Could there be Fate? I hope not, Fate is so chaotic, oh my head!

I have to become stronger quickly, there are still a few months left until I turn 15, after which I will enter the Ninja Academy a few months later.

Making potions or strength pills is one way, besides that, I need to train my body more extremely, and train my mind better, then find a way to store Chakra in large amounts, or use Nature Energy to use Senjutsu, first let's get a reserve of Chakra in large amounts and then find a way to use Nature Energy.

...

Since then, Yuya has been training like a madman, he uses clones to help him in many things, but in return, various information appears and makes his head hurt, but with Mental training, Yuya can overcome it.

Time continues to pass while Yuya trains hard, during this time Yuki becomes more aggressive in trying to captivate Yuya with her beauty, although Yuya is indeed captivated, but most of Yuya becomes somewhat uncomfortable because he decided to train hard.

After thinking for a long time, Yuya decided to learn Sealing Techniques, because he wants to have a large reserve of Chakra within him.

First, Yuya practiced Calligraphy, after that Yuya practiced making Exploding Paper, after gaining some experience, Yuya began to train like crazy.

By relying on Shadow Clones like a cheat, Yuya trained very hard, after understanding more about Sealing Techniques or Fuinjutsu from Exploding Paper, Yuya then began to practice with Storage Scrolls, where he could store items, after training every day for a month, Yuya's understanding became better.

After that, Yuya trained using Jutsu Storage Scrolls, where when opened, a Jutsu would appear, like when Shikamaru fought Hidan, where he could summon water Jutsu, just like in the anime Boruto where Boruto used various Jutsu with the help of tools.

Yuya's understanding became better, and finally, Yuya began to do many experiments and get various things, from successfully creating Sound Dampening Seals, Barrier Seals, and various other Seals.

In the end, Yuya succeeded in creating a Seal to be able to hold more Chakra, like the Seal on Tsunade and Sakura's forehead.

The Seal is on Yuya's chest, although Yuya wants to install more Seals on his body to be able to hold more Chakra, but Yuya first needs to create a Seal to Absorb Chakra around him into his body.

But the problem is very dangerous, because Chakra that comes from outside where it is not filtered through the body, will be very dangerous and unstable, unlike Nature Energy which is naturally stable without needing to be stabilized.