A Regressor's Guide to the Frozen Apocalypse - Chapter 41: Clue (1)

A teen is summoned to another world as the Hero. It turns out the Hero can power up women with his cum.

System: You are the only human who meets the binding requirements of this system, please bind with me!

Su Yu: I have money, good looks, power and influence, why should I bind myself to you?

System: You haven’t fallen in love ye-

Su Yu: Aiya! My stomach is hurting all of a sudden!

Su Yu bound himself to a system; his only task is to scatter some IQ to the brainless male protagonists. The soft-headed male protagonist chases after the female protagonist, the male protagonist with some intellect chases after him. He feels that something is not quite right…

Su Yu: System, is there something common between these male protagonists?

System: Yes, they are all male protagonists.

Su Yu: …Suddenly I don’t feel like talking anymore.

Male Protagonist who has been scattered with some IQ: Then don’t talk, just kiss me.

Su Yu: …Suddenly I don’t feel like doing the task anymore.

- Description from novelupdates

Having been reincarnated, Shen Changqing became a member of the Great Qin's Demon-Subduing Division during an era infested with Demon Evils and rampant Strange Monsters—After slaying a Ghostly Level Fiend, his Pure Yang Technique reached Perfection!After slaying a Resentment Level Monster, his Heavenly Martial Gang Qi reached Perfection!After slaying a powerful Demon Evil, he broke through his own limits!After slaying—Years later, Shen Changqing became the Defender of the Human Clan, and all sorts of Demon Evils and Strange Monsters bowed their heads in submission!“As long as I live, the Human Clan shall not perish!”