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.
By the way, if you had chosen box A, 
I would have had you eat this eraser.
بالمناسبة، لو اخترتَ الصّندوق ألف، لجعلتُك تأكلُ هذه الممحاة
Hättest du A gewählt, müsstest du jetzt
übrigens diesen Radiergummi essen.
Si hubieses elegido la A,
habrías tenido que comerte una goma.
Si hubieses elegido la A,
habrías tenido que comerte una goma.
Au fait, si tu avais choisi la A,
tu aurais dû manger une gomme.
Se avessi scelto la A, avresti dovuto
ingoiare questa gomma per cancellare.
Por sinal, se você tivesse escolhido a A,
teria que comer esta borracha!