Jae Yoo, who is obsessed with boys, is determined to do whatever it takes to live in a boarding house housing attractive guys, even if that means going on a blind date with the least popular boy in school. However, when she breaks up with him immediately afterwards, she infuriates his handsome best friend Ji Hu, and the two become sworn enemies. Even after achieving her goal of moving into the "boarding house of hunks," Jae Yoo believes she has it made with an impressive house, a generous landlady, and a cute guy interested in her...Until she discovers that Ji Hu is the landlady's son and knows about her most shameful experience. How will they cope living under one roof, and can they even manage to coexist?