After graduating from Gekkoukan High, Mitsuru went to college and is a part of the social elite. She becomes the head of a special operations unit called the Shadow Operatives. Mitsuru is calm, confident, mature, responsible, wise and very intelligent despite being a high school student. However, she may be interpreted as slightly arrogant, conceited, cold-hearted or overconfident. As events unfold, this may be a front of maturity, due to her assumed role as the leader of SEES. 