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...
I never thought I'd hear 
you talk like that...
...لم أتوقّع قطّ أن أسمعك تتحدّثين هكذا
So hab ich dich ja noch nie reden hören …
Du hast dich verändert, Kuro.
Nunca creí que dirías algo así.
Cómo has cambiado, Kuro.
Nunca creí que dirías algo así.
Cómo has cambiado, Kuro.
Je ne t’ai jamais entendu dire
quelque chose comme ça…
Non avrei mai pensato di sentirti parlare così...
Não esperava ouvir isso de você.
Не ожидал от тебя такое услышать...