To persuade Ako to get cracking on her summer vacation homework, the girls have a study session sleepover at Kyoh's gigantic house. However, without Hideki around to keep Ako under control, things soon get out of hand.
You're the one who's being mean!
Stop brainwashing us, will you?!
¡Tú eres cruel!
Sei tu la cattiva!
Piantala di farci il lavaggio del cervello!