I Signed-In For A Billion Dollar Mansion From The Very Beginning - Chapter 390 - Since You Want to Fight, Bring It On!

[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.

When I became a rich young master, I had to enjoy it.
Training? No!
That is so boring.
I have a system, no need for training.

Are you hungry? Come, I will treat you with some food at a luxurious restaurant.
What a poor homeless. Come, I will give you a house.

I, Lin Fan is a good person.

- Description from Novelupdates

On the will left behind by the 14 year old suicide victim K:

“Taku Sugawara is the devil. Nobody should believe his words.”

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.