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...
Your big sister is starting to
 worry about your future
بدأت أختك الكبيرة تقلق بشأن مستقبلك
Onee-chan macht sich langsam
Sorgen um deine Zukunft
Tu hermana
teme por tu futuro
Tu hermana
teme por tu futuro
JE M’INQUIÈTE POUR TON AVENIR.
La tua sorellona sta iniziando
a preoccuparsi per il tuo futuro
Sua irmã mais velha começou
a se preocupar com seu futuro.
Сестрёнка начинает
переживать за твоё будущее