In Japanese folklore, Oni are evil creatures such as demons, ogres, and trolls. When the Oni (delinquents) at Onigashima High get unruly, Momo hires Otogi Bank to address the issue with the student council president.
The student council's on the 4th
floor of the main building, isn't it?
Der Schülerrat sitzt im vierten Stock
des Hauptgebäudes, ja?