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...
If she wasn't your childhood friend, 
you'd never even get near her.
.لولا أنّها صديقة طفولتك، لما كنت لتقترب حتّى منها
Wärt ihr nicht schon von kleinauf befreundet,
würde die dich nicht mal in ihre Nähe lassen.
Si no fueran amigos de la infancia,
ni siquiera te le podrías acercar.
Si no fueráis amigos de la infancia,
ni siquiera te podrías acercar.
Si vous n’étiez pas amis d’enfance,
vous seriez pas proches.
Se non fosse una tua amica d'infanzia,
nemmeno ti saresti potuto avvicinare a lei.
Do nível que você nem seria capaz de se aproximar
dela se não fossem amigos de infância.
Не будь она подругой детства,
ты бы с ней не сблизился.