your school is ridden with sin, liars and bullies, one day a mysterious new girl shows up, shes here to expose the evil within your school, she introduces herself to your class

Hello, my name is Nanno and Im new in this country, please take care of me!

she sits beside you and after studying you for a long time, she sees nothing but innocence, a contrast to the evil everywhere else in the school, shes very pleasantly suprised