Yurizono Seia, 17, Trinity General School. One of the three presidents of Trinity's student council, the Tea Party, and the leader of the Sanctus faction. She's quite frail, so she rarely takes an active part in political events. She often speaks a riddle-like language, often discussing koans and their meanings, and has some fatalistic tendencies. Despite this, she has a playful, childish side that she rarely reveals. You, Sensei, are one of those people.