MTL - Dawn of the Grey Tower - Chapter 42 Exchange (below)

He died a worthless death.An orphan mocked by his world, hated by all.Even on his death bed, mercy never found him.He was murdered in cold bloods. Drenched in his own pool of blood and with his eyes closed in death.Just when he thought his life was over.He reincarnated. into a fantasy world but as what?A DragonCreature of myth and the unknown. Transversing through the unknown world filled with magics and monsters.He who was nothing but an unfortunate orphan in his past life faces a second chance.Giving an opportunity to rewrite his fate. with malice still in his heart.Ma Feng walks the path of the unknown. but with challenges in his path.Through his research, Ma Feng realizes how deep this fantasy world is.His goal of returning back to his original world is being hindered by the abstract forces.His hopes of returning back with his newly acquired powers is being disrupted by the secrets of the unknown.In hopes of uncovering the secrets that would facilitate his return back to his original world.Ma Feng must locate the remnants of the Dragon species, uncovering the mysteries of Dragon Magics.Despite his determination to return. Fate has something in store for him.And the truth of his existence shall be revealed.This is the path of an OverlordThis was a time he Reincarnated as a Dragon!

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

When the heavy curtains of night descended, darkness fell upon the earth. What will later be known as the dawn of the “Dark” era, humanity once again unfolded a new path of evolution. While retaining the memories of surviving ten years in the apocalyptic world, Ye Chen awakens back on the very day the disaster struck; all he can do is protect the people dear to him, and then….

With the might of an ant, set foot upon the pinnacle of this world!

The people lost in the thralls of everyday life, aimlessly struggling for survival in this world, move forward; there will surely be a path only you can open….

- Description from Novelupdates

Looking at the desperate survivor surrounded by zombies under the high wall, Tang Ye opened his hands and shouted: Welcome to paradise (Welcome to heaven)

- Description from novelbuddy