The Great Demon System - Chapter 5: The Breaking Poin

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

[Slice of life]

What would you do if you could copy abilities during an apocalypse?

Of course, you can only copy women's abilities by having sex with them and absorbing their coitus essence!

Jake Mystro, a determined and strong-willed teenager without an ability, was frowned upon and disdained for being powerless, as his body even rejected artificial abilities. Yet, that didn't bother Jake or make him sad, rather, he supported himself with the help of beast gears to avoid being bullied.

However, on a particular day, Jake got tricked into awakening his Vampiric powers, but the process left him in a life and death condition. Luckily, he acquired the 'Cuckold System.

[Ding!]

[You have acquired the Cuckold System]

[The Goddess of lust has acknowledged your strong will and determination]

[You have become a dedicated follower]

[By stealing other people's women you shall become stronger]

“I shall not become the follower of anyone! I will also conquer the goddess of lust! Mark my words!”

[Fufufu.....you have balls of steel, you know?]

Let's follow the journey of Jake Mystro as he embarks on the journey of doing perverted tasks and becoming men's worst nightmare.

A polite and lethargic boy was reincarnated in another world as a vampire bishoujo.

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.