Taemin is known for changing his girlfriends like his underwear. He lives at the dorm, right next to the faculty. Being the son of rich but unfortunately problematic parents, he is a player and does not believe in love. His relationships only last until his goal is reached. Kai on the other hand is the sweetest guy, and most handsome waiter the customers of "Kamong" could ever have wished for. He works part-time at the café of his older sister Jungah to help her out and make some money on the extra for his university expenses. He has a lot of high-school girls, as well as university students confessing to him but he rejects them all repeatedly. He does not feel attracted to girls, yet he can't come out due to the judgmental society. Both just want to lead a peaceful life. UNTIL innocent Kai's first kiss is stolen by none other than evil Taemin. Now the younger wants to take revenge but is he ready to play with fire?