Hige seems to know how to function the best in human society, even wearing a dog collar, although the true meaning behind his collar is revealed later in the series that is a tag/transmitter . He tends to use his intuition more than the others, but only when he's not thinking with his stomach instead. Hige is quite the ladies' man and is always on the look-out for a nice girl. He has the best sense of smell between the others. Hige seems to be a Himalayan wolf in the series. (Source: Wikipedia) Hige's name means "beard" or "whiskers" in Japanese.
Nagisa is a boy raised as a girl.
An old school friend of Ryousuke's father.
He was a noble man that helped Celiane and Apollonius fighting the Drak Angels until he betrayed them for his desire to become an angel himself. Beacuse of a vision, Reika thought that she was Celiane reincarnation but actually she is Scorpius reincarnation.
Kosaki's sister who is a school year younger. On her way to school, she is saved from some delinquents by a mysterious prince (actually Raku Ichijou) and ends up with his locket. Her first impression of Raku is negative as she observes that he is a womanizer who is trying to trick her sister and he is a pervert for looking at her panties. She also refuses to return his locket until Raku convinces her that he is helping the "prince." Unlike her sister, she is a good cook. She later reveals that she was helped by a guy in a mascot costume (also Raku) who treats her to ice cream. Later, she nurtures some feelings of love for Raku, but she later backs off, since she finds out that her sister, Kosaki, also has feelings for him. Instead, she decides to support her sister, despite her strong feelings for him.
A transfer student at Tomobiki High School, Class 2-4. She is a girl, but because her father says the successor to the Hamachaya must be a man, he raises Ryuunosuke as a boy and insists that she is one. Because her eccentric father has raised her as a boy in order to run the Hamachaya, she behaves a lot like one and is quite violent. However, since she is in fact a girl, she hates being treated like a boy. She would love nothing more than to let her feminine side show, but her father interferes in every attempt she makes. Her first love was her elementary school teacher, whom she later realizes was a woman. Only Ataru Moroboshi truly treats her like a woman, but she handles it the same way most girls handle Ataru: with a hard left hook, not that it ever stops him.