久我 満琉

“She has no intention at all of getting along with us, does she…”

The protagonist. He enrolled at Libra Lapis Lazuli Private Academy as a first-year student after receiving a mysterious prospectus in the mail. On his first day of school, he gets caught up in a certain incident and accidentally breaks a bronze statue in the courtyard. The principal decides to assign him to the Bureau for the Investigation of Special Affairs as compensation. He has an aggressive personality and a somewhat rude tone of voice, but on the inside he’s a very caring person, which leads to him getting caught up in all sorts of trouble. He also has a pretty sharp mind, but he gets frustrated when he can’t keep up with Ushio’s quick reasoning. Ushio is like a rival to him, and he often picks fights with her. He dislikes being called “Michiru,” possibly because he doesn’t like his name.

English official site.

His real name is Koga Mitsuyoshi (久我 三厳), the 20-year-old brother of Koga Michiru./