We are brought back in time to when Yume and Mizuto were once a couple. A time when neither of them could control their nerves in what was their first ever relationship. Having already held hands and kissed before, the young couple are eager to take the next step. Spring break passes, however, with neither able to make the first move. Upon entering their third and final year of middle school, the two are regrettably put into separate classes. Alas, unable to spend as much time together as before, they both begin to grow apart.
I was just acting out of a childish 
sense of pride and jealousy.
.كنتُ أتصرّف وفق حسّ صبيانيّ بالكرامة والغيرة
Ich habe nur kindisch aus
Stolz und Eifersucht gehandelt.
Yo me comporté
como un niño por los celos.
Yo me comporté
como un niño por los celos.
J’étais juste jaloux et têtu.
Ho solo agito spinto da un infantile
senso di orgoglio e gelosia.
Eu apenas agi por um sentimento infantil
de orgulho e ciúme.
Во мне говорила детская гордость
 и ревность.