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

Natasha couldn't believe what she had just heard. Someone had seen her defecate in a bucket? And the person standing in front of her was Damian? He looked nothing like the Damian she knew!

"How do you know these things?" Natasha asked, dropping the fishing rod and getting ready to fight.

Damian gestured with his hands, "Calm down. I'm telling you, I am Damian. Your sister is in the city, waiting for you. Do you want to come see her?"

The whole situation was bizarre. Natasha wouldn't trust a random stranger who claimed to be someone else, but she did trust Damian, for her sister's sake!

She wanted to see her sister so badly, and she couldn't ignore that feeling. If there was even a slight chance that her sister was in the city, she had to go!

"Then let's hurry up before the old man leaves!" Natasha said.

Returning to the City