Warlock of the Magus World (WN) - Chapter 55

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

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

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.

Vegeta travels to the Marvel Universe.

For more than ten years, Vegett has grown from a young man who first came to the universe to survive among the major forces to become the only god among the six gods in the universe who is not the innate god – the God of Destruction.

Along with eternity, swallowing stars, death, infinity, and annihilation, they are called the six true gods of the universe. Title – Destruction.

The universe is far more complex than imagined. Not only the local gods of Marvel, the god group, the eternal titans. There is even an angel civilization, a demon civilization, and even Karl, the god of death in the Styx galaxy. The sun god of the heavenly civilization.

Devil Death, but his subordinate gods, Keisha, Thanos, you need to be respectful when you see him.

- Description from novelbuddy