Supreme Tamer - Chapter 17 - : The Arrival of the Nightmare Demon

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

[BL WARNING: EXTREMELY MATURE CONTENT]“I know you like it when I dig deep inside you.”Maxim had been living a secret double life as a masked dancer in a brothel within the red-light district, driven by the need to earn a high income.One night, he noticed a golden-haired man staring at him with intense interest.Seizing the opportunity, Maxim seduced the stranger and lured him into his bed for a one-night stand.However, what began as a brief moment of pleasure quickly turned into a nightmare when Maxim discovered the true identity of his mysterious admirer.The revelation set off a relentless pursuit, with Maxim finding himself hunted wherever he went. Especially after knowing the golden-haired admirer was the son of the man who killed his parents.The revelation set off a relentless pursuit, as Maxim found himself being hunted wherever he went; he couldn't escape.Would Maxim surrender himself or fight for his rightful place?

C-class mercenary. Started as a No Class, possessing nothing.

13 years of survival in the depths of the ditches.

I’ve managed to return to the beginning, but…

When encountering demons, a young man with two horns on his head, red hair reaching his waist, and an extremely handsome appearance leads the demons to the front.

Youdou: Actually, I really don’t want to be a master of monsters. This profession is completely useless. My ideal is to become a magic stick…, bah, it’s to become a great onmyoji.

All the monsters: My lord, wake up, you are the leader of the monsters yourself!

- Description from novelbuddy