Son Jun Hee had been head-over-heels for Jeon Jung Kook for a year now but he still hasn't noticed her. She then thought that she didn’t have anything to lose if she tried getting him into drinking the love potion her friend, JB, gave her.

It all started when Jun Hee accidentally entered the men's restroom right when Jung Kook decided to change his shirt not inside a cubicle but just alongside the urinals. He never noticed her but she had seen just enough to make her life colorful.