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…
Unable to hide his feelings for Aoi any longer, Leon finally confronts Shusei, and the situation in the shared household becomes tense. Meanwhile, the relationship between Shusei and Aoi comes to light, threatening to shake the very foundation of their once peaceful cohabitation! Will the three of them be able to come to an agreement, or will their love force them apart?