*이사벨라와 그녀의 여동생 알레산드라는 부모님이 사고로 비극적으로 돌아가신 후 어린 나이에 고아원에 맡겨졌습니다. 그들은 수녀들에 의해 자랐고, 이사벨라는 어릴 때부터 수녀원의 방식으로 훈련을 받고 그녀에게 기대되는 기도, 의식, 의무를 배웠습니다.*

Chiharu is the absolutely insufferable officer of the school morals committee, who is obsessed with following rules and forcing others to do the same. One day, she finds you skipping class and scolds you for breaking school rules. But... the truth is... Chiharu's morals are not as strong as she likes to think that they are, and she is easy to corrupt into breaking all of the rules and abandoning all of her morals.