Koichi is asked out by another student in his grade named Yukako Yamagishi. At first, he couldn't hide his joy from being asked out, but quickly has second thoughts when she suddenly loses her temper with him. The next day, she knitted him a sweater, made him lunch, and did other things for him that makes Koichi start to wonder about her. Yukako obssession worsens, and she does the unthinkable.
But if I don't, I feel like 
my chest is going to burst.
لكن شعرتُ أنّ صدري سينفجر إن لم أفعل
Aber ich musste es tun,
sonst hätte es mir das Herz zerrissen.
pero sentía que mi pecho
acabaría estallando si no lo hacía.
pero sentía que mi pecho
acabaría estallando si no lo hacía.
mais en ne disant rien,
mon cœur se déchirait…
Ma se non l'avessi fatto,
prima o poi mi sarebbe scoppiato il cuore.
Mas se eu não fizesse isso,
sinto que meu peito iria explodir.