He is Lovestruck in the Revenge - Chapter 176 - 169 The End of Yan Cong Changling Breaks Up with

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

A man dies and for some mysterious reason is given three wishes.The man, a pervert and even degenerate (just a little), asked to be sent to a world full of sex and lust, just for pure fun, unfortunately he was not very specific and ended up going to a world much bigger than he could imagine.His other wish was the System he read in one of the many stories he read, the System of [The Gamer], which due to various reasons, perhaps due to laziness of the person who created it, the System is not 100% identical.But this didn't affect our protagonist much, who had the opportunity to create his own appearance and decided for nothing less than a hot Futanari with a big dick!

Tang Feng had been just an ordinary milk tea shop employee before one day, the lady boss called him to her room, and he learned what “hidden rules” really meant...

“Host, you are about to load the sci-fi adventure system, please be prepared”
“Three Body”.
“Wandering Earth”.
“Interstellar”.
“Gravity”.
“Mars Rescue”.

Uh …
As the youngest full-time professor of mathematics in the history of Jiangcheng University, Pang Xuelin was a bit stressed.
Uh …
The hardest science fiction, the best times.

- Description from Qidian