On her way to school one morning, a boy from another school gives Himeno a love letter. The sudden turn of events has Himeno bewildered, and behind her bewilderment likes a traumatic memory from her childhood. What happened in Himeno's past? Himeno and Nozomi have come to Kyoko's house for a study meeting. As they're working, something strange happens...
Just so you know, that chocolate 
you're eating is mine!
لمعلوماتك، الشوكولاتة التي
!تأكلينها هي لي
Die Schokolade, die ihr
da esst, ist meine!
Para que sepas,
el chocolate que comes es mío.
Para que lo sepas,
el chocolate que comes es mío.
Et je te signale
que c’est mes chocolats !
Per la cronaca, quel cioccolato
che stai mangiando è mio!
Pra sua informação, o chocolate
que você tá comendo é meu!
Чтоб ты знала — 
ты сейчас лопаешь мой шоколад!