During one of his visits to a gay bar, Yamato, a refined top with a princely aura, chanced upon a porn video featuring Jin, a top with a wild character. After hearing rave reviews about the man's wondrous sex, Yamato's curiosity piques as a fellow top. Promptly, he goes to visit Jin and seeks out the man's expertise. But Jin's condition is to teach through practice, and that's where our story begins!

Han Yi-shin, head of Busan's multi solutions business, succeeds in making President Kim's woman run away. Director Yoon, a close confidant of President Kim, finds out that Han Yi-shin facilitated her. He kidnaps him, tortures him, and threatens him to bring the woman back. Han Yi-shin pretends to give in to Director Yoon's threats but then flees to Seoul that night. When Director Yoon finds out about this, he grits his teeth and chases Han Yi-shin to Seoul.“The day I catch you, I'll tear you apart.”, he promises...

Getting all his levels and first time stolen by an undefeated, cheat-skill-using new adventurer?! Dive into a world where everyone has a special skill. Shu uses his Level 999 ability to save a newly reincarnated salaryman from a magical beast. After returning home and chatting over drinks, the salaryman's skill is revealedhe's a strong, top-tier adventurer with an incredible ability! But the way to activate his skill is only by?! "Why don't we level up in bed?"