Adolfe Pescarolo

The principal of Shuchiin Academy. An elderly man with a gentle expression. He was formerly the principal of the French school.

He usually speaks in broken Japanese, but his monologues switch to a normal tone. He harbors ulterior motives and sometimes takes actions to test Shirogane's qualities as a student council president. He has a sharp side, such as noticing the truth behind the incident caused by Ishigami and understanding relationships among the student council members that even they are unaware of. He often brings snacks to the student council room.

In the novel version, it is revealed that he is an alumnus of Shuchiin Academy.