When a mysterious girl named Guri knocks on Seiji Aino's home, he finds himself plunged into a world of love difficulties. Guri's desperate demands for Seiji to kiss the cute stranger who came barging into his house are misinterpreted as pleas for love, causing Seiji to kiss the cute stranger who came barging into his house. In reality, this cosplaying cupid is the owner of a Kiss Note, which states that any pair of names she writes will kiss and become a couple. Guri says that she misspelled and inadvertently typed Seiji's name while indulging in her yaoi fantasies, but their kiss was worthless because she hadn't paired him with anybody. Worse worse, Guri reveals that if