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...
Don't worry. You just need to end up happy.
.لا تقلق. عليك أن تكون سعيدًا في الأخير فحسب
Mach dir keinen Kopf.
Hauptsache, du bist am Ende glücklich.
Tranquilo. Bastará con algo
que te haga feliz.
Tranquilo. Bastará con algo
que te haga feliz.
C’est simple.
Il suffit que tu sois heureux.
Non preoccuparti. 
L'obiettivo è che tu alla fine sia felice.
Não se preocupe, basta você sair feliz disso.
Всё просто. Тебе лишь нужно
найти своё счастье.