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 softnesses of the boobs enveloped Damian's cock. Its warm feeling was like being in heaven — not that Damian knew how heaven was — but it was incredible!

Druvana kept moving her boobs, and her tongue was also doing the work, licking the upper part of Damian's cock.

She opened up her mouth right after, waiting for the huge load of cum, and so it happened. The load of cum flew inside her mouth, but it also hits her eyes and cheeks.

A mess, yet one that Druvana loved! She licked her lips, swallowing each cum drop with a smile, enjoying every second!

Damian moaned as he came to her face. The pleasing feeling was already good enough for him, but the notification of the System telling him he got some rewards made it even better.

The Erotic Coins were not the thing he wanted the most, but the necromancer tome!

"Becoming a necromancer sounds so freaking dope. I cannot wait to practice this!"

[Bonus chapter] Calm Down, Girls (Light R-18)