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.
You've released his limiter by
touching him, Momo-chan-senpai.
Von dir berührt zu werden war
zu viel für seinen Limiter.