A Wild Man Has Entered the Academy - Chapter 166:

A young man woke up to a world of magic and endless possibilities.He was transmigrated.Great!Only that he now had three huge problems.One, he had no memories of his past.Two, he was a villain destined to die no matter the outcome.And three, the heroines were all kinda... should he say, obsessed?Yeah, he was fucked.[Note]No Yuri.Conflicting emotions of MC due to loss of memory for the first part.Huge plot twist, so don't fall for whatever you see.NTR? Not.But probably netori.Beta MC? Big No.Harem? Yes! Don't ask me how but I'll make it possible.

This is a world where Awakened beings and Mutated Beasts coexist.Zhang Ping was fortunate enough to become one of the Awakened, but his abilities were classified as useless.Unwilling to live an ordinary life, he boldly swallowed a Contract Gem that most people avoid like the plague, and made a contract with himself.From that moment on, the entire world opened up to him.Ever-changing superpowers, endless Mutant Beasts...

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

Ning Zhi transmigrated into a female supporting character who ran away from her wedding. The original novel was a fluffy book on the love between the male and female leads. The cannon fodder female supporting character, who had also married into a prestigious family, was caught while trying to escape her marriage which had led to her difficult days in the prestigious family. In addition, her husband was autistic and, for the sake of pursing true love, she made a tragedy out of her own life. Recalling the awful ending of the female supporting character in the novel, Ning Zhi expressed that she would never try to run away from her marriage. What was wrong with having globs of money? Or was her husband not cute enough?