MTL - I, Luffy, Awaken the Sun God on the Top - Chapter 182

In an era when the power of Fire Magic was considered to have reached its limit, one girl began researching nuclear fusion.

After a tear in reality pulls Kagari Shuya into a white room he discovers a futuristic interface for reincarnating in a different world. After looking through the different races and skills he unlocks a new race, Lucivault, a type of vampire with none of its characteristic weaknesses. All set to start his life in a new world, Shuya is confused to discover that he is enveloped in darkness. As it turns out something went wrong when he was transported and instead of appearing where he was supposed to, he appeared in an underground cave. Shuya faces untold dangers, runs for his life, before finding his way out of the underground world. After escaping he meets his Shishou and begins to learn to fight with a spear. There is also a cute black cat named Rollo.

In this world, orphans or just anyone without any hope for this world can apply to become a “walking target”. Their sole purpose is to be a practicing dummy for the students of the sect who train to become “Demon Hunters”. These students need “walking targets” to test their training on living, walking beings of flesh and blood.
In exchange, they will be provided with food & shelter.
Their existence value is lower than a slave, but if they manage to survive a few years they can receive a life long pension.

Xiao Han is such a “walking target”. One time he witnessed a powerful Demon Hunter disposing a demon. When the demon died, a fragment of the demon that managed to escape entered Xiao Han’s heart. No one saw that, and even Xiao Han himself only felt some discomfort for an instant.

But that thing in his heart soon gave Xiao Han visions, and the first one is of a cultivation method which allows Xiao Han to absorb damage to enhance his body. A perfect cultivation method for a “walking target”.

- 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”