A look back in time at the events that set everyone on their current paths. Rena's envy for Yuki drives her to a desperate impulse. Manager Yamamoto and Nikaido Rui race to hide a corpse.
It eats away at me so much 
I don't know what to do.
.إنّ ذلك يعذّبني كثيرًا ولا أعرف ماذا أفعل
Es frisst immer noch an mir.
Me carcome tanto
que no sé ni qué hacer.
Me reconcome tanto
que no sé ni qué hacer.
Et je fais que le ressasser
encore et encore.
E questo mi fa così male che
non so più come comportarmi.
Eu fico me remoendo tanto
com isso que não sei o que fazer.
С ума схожу и не знаю,
что же сделать…