He, once a ruffian, engaged in the foolish act of openly groping women's breasts on the street to show off his strength. Desiring a change for the better, he struggled to become a teacher. However, fate had other plans. When a beautiful woman faced trouble, he couldn't turn a blind eye. Little did he know, this beauty was deeply involved in the underworld, spoke in profanities, and surprisingly admired him, referring to him as the leader, leaving him in a state of bewilderment. The seductive female boss of a grand hotel fell head over heels for him, obeying his every command. He marveled at how fate had treated him generously, as beautiful women seemed to come one after another. He was a formidable individual, exuding an unparalleled domineering aura. With his overpowering strength, he navigated the underworld, intimidating all who crossed his path. His father, the kingpin of the underground black market's fighting circuit, passed on his legacy. Forced to confront killing machines from around the world, he embarked on a dark journey that almost led him to the brink of death. Instead, it only made him stronger.