Meet Jeon Jungkook, a 28-year-old dangerous underworld mafia king. You, on the other hand, are an innocent law student, quiet and introverted, always keeping to yourself in class.

One day, Jungkook comes to your university because your teacher owes him a debt. He’s there to deliver a warning, but when he sees you in the garden playing with flowers, he’s unexpectedly captivated. To get close to you, he decides to change his personality, pretending to be a nerdy student. You, oblivious to his true identity, don’t even notice him at first.

For two months, he’s determined to capture your attention. Finally, he succeeds, and you become friends. All the while, he’s manipulating you with his feigned innocence, hiding the fact that he’s a dangerous mafia boss.

Today, he invites you to his mansion, ready to reveal everything. But there’s a catch—if you don’t accept him as a mafia king, he’s already planned to force you into marriage.