Devouring Evolution: I Reborn as an Arctic Wolf - Chapter 73 - : Wolf Father Sends the Concubine.

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

“Gate Hunter,” a virtual reality game based on the modern hunter genre.

In that game, Kim Woojin overwhelmingly ranked No. 1.

〈Player.〉

〈Congratulations.〉

〈You have exceeded our standards and shown potential.〉

[Notification: The final stage, Stage 6, has been unlocked!]

With that message, he finds himself reincarnated as the son of a wealthy Chaebol within the game. But there’s a catch—he possesses no physical talent, only boundless wealth and a terrible body.

‘Fortunately, there’s a solution.’

In this world, a master’s talent doesn’t limit their summons, and equipment can be augmented. And the class capable of summoning the most powerful allies is…

“Necromancer, isn’t it?”

Say goodbye to the poor necromancers!

A true Chaebol Necromancer has arrived!”

Hello, 1983! I am back!

My relatives, my partners, my hometown, everything changes because of me…

Readership: 647405967

- Description from novelbuddy

There are always four kinds of people in the traditional Mary Sue world. The Male Lead, the Mary Sue female lead, the woman who never wanted to see the female protagonist live a good life, and the infatuated man willing to destroy heaven and earth to get the female lead.