King of Assassins - Chapter 179 - 168 Answer

Gabe King starts college desperate to change—to make friends, find love, and finally bury the twisted obsession he’s secretly held for his mother. But one drunken night at a party shatters everything. Inexperienced and overwhelmed, he accidentally cums inside a hooker… only to realize it’s his Mom, Angela.She doesn’t recoil. She smiles.For Angela, this is permission. The moment she’s waited for. Her yandere love for Gabe, once hidden beneath motherly concern, is now unleashed. And she’ll do anything to keep him, sabotaging his friendships, crashing his classes, and reminding him that no one will ever love him like she does.More Plot than Porn.[Some NTR, but not from the mom]

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

The youngest Wiseman of the continent, Chu Tian, has traveled 30,000 years back in time to the age of antiquity due to an accident.