Jun-ho and Min-soo, experience a hard time because of Da-hee who drinks whenever she breaks up with her boyfriend, but they still take care of her. But they heard that Da-hee is meeting her ex-boyfriend again. Actually, the two guys like Da-hee. They’re trying to make sure that Da-hee won't meet her boyfriend again. The love story between the two men, which is invisible to the eye, is just about to happen.