Ichiban Ushiro no Daimaou - Volume 3, Prologue

In a peaceful, utopian Earth, a young man is born cursed by the will of the heavens. One day, he awakens… and uncovers the hidden world of the High Humans—the most powerful beings on the planet. His superpower? A rare support ability with healing powers… or is it? From that moment on, a healer who devours lives to grow stronger, just like the worst demons, is born. *** This is a story about superpowers in a distant future, where Earth hides unimaginable secrets. It’s also a journey across universes, filled with battles and discoveries. The protagonist isn’t a genius or a trained warrior. He’s just an ordinary man who faced dark times and watched his life be consumed by the abyss. But now, he has a chance to change everything. Step by step, he will learn why to fight—and how to survive.

Liu Duo was a young girl whose grandmother sold her to four brothers with the intent to be a bride. Unwilling, she ran away the following night, only to fall unconscious while trying to get away. Unexpectedly, however, she was reborn with the spirit of a 25 year old woman, also named Liu Duo.

- Description from Novelupdates

Traveling through the Naruto world, he was reborn as Uchiha Itachi’s uncle, and awakened Dio’s substitute “World”.

Have you ever seen Uchiha practicing blocks?

Ghost back, tire shoulders, a face of Araki lines.

Tear Susano with your hands, step on the tailed beast, and fight Kaguya Hime hand-to-hand.

I heard that the thunder escape ninjutsu in Yunyin Village is unique in the ninja world? I invented Uchiha’s Yin Escape Illusory Body Art.

I heard Itachi wants to exterminate the clan? When I went up, I just slapped my nephew’s teeth.

I heard that Obito Kamui is invincible? I punched through the void.

I am the god of muscles of Uchiha.

Smash – Varudo!

This book is also known as: “Saving Uchiha from the Destruction of Konoha”

- Description from novelbuddy

What got summoned was the world’s strongest sociopath.