Aoi Nishimori is a high school girl who lives alone in her own apartment, but to her surprise, she discovers that the prince of her school, Shusei Kugayama, has moved in next door! To add to this, a series of crazy happenings result in the two living together under a single roof! Shusei is known to be a heartless guy and Aoi particularly hates him after he coldly rejected her best friend, so a life of cohabitation seems like a recipe for disaster. And yet, Aoi somehow can’t stop her heart from pounding when she’s with Shusei…
Aoi appears to finally be coming to terms with her feelings for Shusei. But before she can come to a conclusion, she witnesses a shocking scene between Shusei and a beautiful woman. However, it turns out that Shusei is not the only one who’s popular with the opposite sex, as a younger rival enters the fray and vies for Aoi’s attention. One boy is enough headache, but what will Aoi do with two gorgeous boys as love interests?