Haikyuu: Zero To Almighty - Chapter 15: Ace

Crossing over to an independent urban world where martial arts and immortal law coexisted, the only thing Lin Shen could rely on was his clone’s golden finger.

“Clone cultivation, the host becomes stronger.”

“Clone [Pure Flame Body]: Flame attribute techniques cultivation speed +300%, Blazing Flame Palm, Melting Hand, Pure Flame Sword Skill… Any flame attribute techniques at your service. You can become a master in a day!”

“Clone [Natural Daoist Body]: cultivation speed +500%. All martial arts techniques can be understood at first glance, and will be integrated, crushing all geniuses!”

“Clone [Non-self Sword God]: Sword art technique power +200%, sword art technique cultivation speed +200%. No matter how strong you are, I will cut you down with one strike!”

…

“You never know how many clones are trying to cultivate behind the person you are talking to in front of you!”

“What does it have to do with me if my clone did it?”

“Don’t try to outnumber me cuz you can’t!”

In a future city intertwined with science, magic, and various races, a fearsome villain lives.“How dare you try to use such a young child. Do you have no conscience?”“It’s truly regrettable. To think that this girl could be the key to eradicating a den of evil.”“You can rest easy now. We will definitely protect you.”Sorry, but I’m actually that villain…It seems like a serious misunderstanding.

Yuki, a high school junior, dies heroically saving a stranger and is reincarnated in a fantasy world, where he discovers an extraordinary and unrivaled power.

Li Pu, who has the blood of a summoned beast, originally just wanted to lie down honestly, but found that his talent as a summoner seemed a bit unusual…

- Description from novelbuddy