紫之宮 菫

Sumire is the head of the Naked Scholastics Week Executive Committee as part of the Student Council. She wears a blue ribbon instead of a red ribbon as all other students do to signify her position as a member of the council. The executive committee is also expected to spend an extra week before the official Naked Scholastics Week begins naked in an effort to inform the public of the upcoming event.

Her duties include making sure the event goes smoothly, to give public relations events about Naked Week, and to ensure that the students are cared for. Because the police will not become involved in any incidents of sexual harassment or rape during naked week she allows herself to be sexually abused by strangers in an effort to offer her own body in exchange for the students in her care.