A Kiss Note is a powerful notebook that makes anyone who have their names written together instantly fall in love if they kiss each other. This magical item belongs to an angel named Guri whose job as cupid is to create couples. However, she accidentally writes down Aino Seiji, a regular high school student, and unless he kisses someone in the course of 24 hours, Guri will die, and Seiji will remain a virgin for the rest of his life.

Eventually, Guri convinces Seiji to kiss his crush, Hiyama Akane, the school's popular girl who turns out to be a yandere, with her feelings for Seiji bordering on obsessive and psychotic. To make the matters worse, after Akane and Seiji become a couple, Guri decides that she likes Seiji as well. Now, what seems awesome to most guys becomes hell for Seiji who just wants a normal relationship with a girl.

Source: MangaHelpers

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