A love story about a sad girl and a sadistic handsome guy. Rin, who has loved Yuu since childhood, always accidentally says bad things because he loves Yuu too much. On the other hand, although Yuu also has a crush on Rin, she doesn't have the confidence to confess. Will the distance between the two of them always be just childhood sweethearts...? What kind of changes will the love rival Kazuma who appears in front of Rin bring to the relationship between the two?