Sui is Kei's younger brother and resembles a younger version of Kei. Initially, he dislikes Kei because he finds living with him disgusting and thinks of him as a robot wearing human skin. Because Sui feels very inferior to his brother, who is good at everything, he believes that he cannot reach Kei's level and he refuses to take his studies seriously. However, when he sees that even his "perfect" brother can become desperate and caring, Sui develops a huge brother complex. Sui likes to call Hikari "Stupid Girl", but approaches her frequently when he thinks that Kei needs help. He is in grade 6, class B at Hakusenkan's elementary school division.
Sakura is the daughter of the head of Ushikubo Medical Manufacturing Group and is Kei's first marriage meeting (or omiai) partner to appear in the series. While she does not consider Kei her type, describing him as a "dark lord" rather than a "prince", she considers him a possible marriage partner because his abilities would be advantageous to her family's business. Sakura hates dishonest people with a passion, and her family's motto is centered around honesty and punishing/loathing dishonest people. Hikari's straightforward and honest nature allows the girls to become friends. She attends the same school Yahiro does and sometimes plans stuff out with him (whether the plans be good or evil). Sakura falls in love with Jun at first sight, as he fit her ideal of someone who was a "prince", and accepts his split personality. She begins to date Jun soon after; however, because of her forceful personality, she is uncertain if Jun reciprocates her feelings until he admits to her that he does. Sakura first appears in volume 4.
Birthday: February 14 Bloodtype: AB The brother of Megumi, he's usually a nice guy though not much is known about him. It is known that whenever he is kissed by a girl or major affection is going on, he turns into a bad boy (he has a split personality). He, too, has an odd attachment to Ryuu, but is dating Sakura. He is 3rd in 10th grade. (Source: Wikipedia)
Atsushi is Hikari's older brother, a calm individual who does not fail to give Hikari his honest opinion. He is currently a junior in high school and attends a normal high school. Unlike Hikari, he dislikes fighting and has refrained from any physical fights and yelling since he was little. This is because when they were very young, Hikari saw Atsushi beating up a boy who hit her and his facial expression was so scary to her that she fainted. However, when he feels his sister is in danger he breaks away from his peaceful nature and will not hesitate to beat someone up. Even now, Hikari still becomes terrified whenever he becomes truly angry.
First appearing in chapter five, Hajime Kakei is the Student President at Hakusenkan and holds first place in the class 2-A. He is frequently hospitalized for feeling weak and relies on using money to get what he wants. He begins to send various challenges to the SA when nobody appears at his talk show; since none of the SA members wanted to attend his show, nobody else in the student body wanted to either. Because of Hikari's open and kind nature, he seems to develop a crush on her, though is always scared off by Kei before he gets any chance to express his sentiments. He is not very popular among his classmates, most of whom do not share his animosity towards the SA. (Source: Wikipedia)
Finn is the prince of a small country, in the last episode the time when Ryuu looked up while hugging his dog there was a person in the window, it was him, but this is never mentioned. This is because due to the ordering of the anime, he is unable to appear, and there cannot be a season 2. whose true gender has been concealed from the public. She initially appears as a reluctant participant in a series of arranged marriage meetings Kei's grandfather sets up for Hikari. When Hikari flees from the meeting, Finn falls for her on the spot, since Hikari fits the exact description of Finn's ideal person: a woman with long dark hair possessing a sweet yet tough personality who wears a red dress. After helping Hikari escape, Finn follows her to Japan with the intention of proposing to her. The SA later discover that Finn's mother fits the description of the ideal person Finn wants; Hikari tells Finn that it's a wonderful thing to look up to her mother so much before adding that she and Finn can still be friends. Afterwards, Finn enrolls in Hakusenkan and tries using Ryuu to get closer to Hikari, but ends up becoming very good friends with him. (Source: Wikipedia)
Age: 23 Height: 179 cm (5' 10½") Hair Color: Blond Eye Color: Hazel A hot-tempered blond who has romantic feelings for Ashley. When Rose took over Integra's job as the leader of the PROCEED Team, Sylvia challenges Rose to a duel in their armor. Her PROCEED suit is blue and increases her strength. Later in the story, she confronts Ashley after she hears that Celica has been fired. Ashley consoles her before thrusting his resemble arm into her, killing her instantly. (Source: Wikipedia)