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. Mitsuru has a streak of strict conduct, Mitsuru is shown to be quite awkward when dealing with normal social situations and can be shy even get blushed when someone compliments her.