17-year-old student, Haruhiko is compatible with Fulcanelli's soul and because of this he is constantly pressured into giving up his body to Eukanaria. He's actually very good with mechanical things and may become a great enchanter. His main love interest is Yuka Fujikawa, his homeroom teacher and childhood friend. He became good with machines because he wanted to help her since she isn't good with them. He constantly has fantasies about her. A running gag is that he is constantly called impotent or spineless for his lack of progress with her and when his collection of adult magazines is found by others. He's been training to fight under Yamamoto.