Is the Order a Rabbit?

Season 1

Episode 10: The Anti-Sister Battle Corps, Also Known As the Chimame Corps

Whilst Cocoa stays over with Chiya to study for exams, helping out at the Ama Usa An as well, Megu and Maya come help out at the Rabbit House, where Chino starts to feel a little Cocoa-sick. After work, Chino and the girls head over to the pool, where they participate in a water gun fight and also run into Aoyama. Meanwhile, Sharo comes over to help Cocoa and Chiya with their studies and sleeps over with them.