Mamoru Torigai is another friend and classmate of Kamina's in Tokyo Jupiter. He was seeing Hiroko Asahina before she left Tokyo Jupiter with Ayato. Deep down, he dislikes Ayato because of Asahina's feelings for him. Mamoru is a true Mulian, like Ernst von Bähbem, Maya, and Quon, and holds a high position within the Mulian society.