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

Raikono having a friend in that place surprised Damian.

"A friend of yours?" Damian said. "I thought you lived up on that mountain."

"I did, yes," Raikono said. "But that doesn't mean I couldn't leave, right? Anyway, let's go inside."

The tavern looked awful on the outside, but once inside, Damian was surprised to see how packed it was. There were many people sitting at the tables, drinking, eating, and sharing information.

Raikono went straight to the bartender, who said, "Good evening. What can I get you?"

The bartender's rudeness was evident, but Raikono didn't seem to mind. It was common for people in that tavern to treat each other badly.

"I'd like to speak with Jejelak," Raikono said. "Tell him it's Raikono."

Damian was standing next to him, and when he heard the name, he thought it sounded strange. "It certainly doesn't belong to a human," he thought.

A Moment Alone With Serana (R-18)