In the winter of his first year in high school, Maru Sueharu fell in love with Kachi Shirokusa, a genius novelist who happens to be his classmate. But since it was his first love, time only continued to pass by while he could do nothing. As his so-called friend Tetsuhiko chides him and his childhood friend Shida Kuroha teases him, he overhears his crush Shirokusa saying she has a boyfriend now. His heart broken before he could even confess his feelings, Sueharu is devastated. Then Kuroha proposes that they get revenge...
Kachi-san's pretty cruel, isn't she?
كاتشي-سان قاسية حقًّا، أليس كذلك؟
Schon recht fies von Kachi-san, findest du nicht?
Kachi es muy cruel, ¿no crees?
Kachi es muy cruel, ¿no crees?
Elle manque de classe,
quand même.
Kachi-san è piuttosto crudele, vero?
A Kachi-san é bem cruel, não acha?
А Кати всё-таки очень жестокая.