Ryongul

[Mature Content]

[NO NTR]

The day dungeons appeared on Earth, everything changed! From ordinary beasts to monstrous ones, attacks were common throughout the globe, and no one was safe.

After countless studies using these beasts as subjects, Humankind developed a serum capable of awakening incredible abilities in humans, leveling the battlefield.

With the serum came heroes and villains, those who wished to use their powers for good or bad.

The Garmony Upper School was a place for the elite with the sole purpose of creating heroes to fight the villains and explore more of the dungeons after the beast attacks increased for no apparent reason.

Damian Romero, a youth who received the serum after turning 18, yet got no unique ability. It was not uncommon for one to not receive power, but it was still a blow to one's pride.

He went rogue after the news, drinking alcohol and having a good time with women, and it was at that moment, when he was putting his toy to play, he got a surprise.

[All-in-One System Unlocked]

Damian's unique ability was a system with multiple functionalities, but after he studied it, it seemed this system worked with a different type of coin called Erotic Coins!

Improve his body? Buy any item or unique ability from his system's store? All Damian needed was Erotic Coins, and he knew how to earn them!

~~~~~
The MC will not start as a villain, but something will shift his mind in the future.

All-in-One System: All I Need is Erotic Coins

The mood was not the best, especially with Ashley, a friend of Creed, and Magnus and Aurora were better, as they had only recently known the man.

But despite that, everyone wanted to help get him back from the military base. Their goal was to set up a plan to take over the place!

"So, how many people are there?" Aurora asked.

She had not seen the base, just like everyone else, so the amount of information they had was limited. It would be impossible to form a plan.

"Around 80 people, almost all being superhumans," Wendy said.

A tense atmosphere grew between Wendy and Aurora, and Damian had to intervene, "Use this to fight against them, not between ourselves."

Magnus listened to everything, and it was not looking good. "There's no way we can just go there and fight against everyone. We have to think this through."

Doctor Lincoln