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.
I don't understand the feeling 
of wanting to curse someone.
لا أفهم شعور رغبة لعن أحدهم
Ich hatte nie das Gefühl,
jemanden verfluchen zu wollen.
Cosa spinga qualcuno a maledire altre persone.
Não entendo o sentimento
de querer amaldiçoar alguém.
Как можно хотеть кого-то проклясть?