「ご奉仕委員」とは思春期の青少年の健やかな性教育と、性的欲求の解消を旨に設立された学校内性処理係のことである。恋愛禁止の学校内において「ご奉仕委員」は教員生徒たちの性的欲求を全て受け止めなければならない。そんな「ご奉仕委員」に自ら志願して就任してしまった由愛可奈に襲い掛かる理不尽な魔の掟。The "Service Committee" is the school's sex worker, established for the purpose of healthy sex education for adolescents and to relieve their sexual desires. In a school where romance is forbidden, the "Service Committee" has to take care of all the sexual needs of the teachers and students. Yuna volunteers to be a member but is caught up in its evil.
