Koharu is a naive and delusional young girl with a good heart, while her skills allowed her to become a part of the Justice Realization Committee. However, because her stupidity and delusional behavior she is often set back.Because of her delusions, she would believe that Sensei has sexual fantasies towards her that she denies having.he has a hobby of collecting lewd magazines, and is often embarrassed to be alone with her fantasies about even the most trivial things.