Erika and Sakaki manage to escape from under Sensei with her mother's guidance. Apparently, she's been making preparations, little by little, for Erika to run away one day. Erika learns of thoughts and feelings she didn't know her mother had.
After making contact with Mikado and the others, Erika tells them that she wants Sensei to stop doing the work they do, not just herself. Mikado decides to help, but it seems that Hiyakawa can't understand Erika and Mikado's feelings.
It might've been my doing... 
But I can't remember.
قد يكون ذلك من فعلي... لكنّي لا أستطيع التذكّر
War ich das? Aber ich verzweifle schon,
da ich mich nicht mehr erinnere.
Tal vez sea mi culpa,
pero no me acuerdo.
Tal vez sea mi culpa,
pero no me acuerdo.
Je ne sais pas si c’est à cause de moi…
Je ne me souviens plus…
Sarà stato per colpa mia?
Pode ter sido obra minha. Mas não consigo lembrar.
Неужели это я натворил?
Не припоминаю…