She skips classes, carries a wooden sword for fights, and gets arrested often. Despite this, she becomes friends with Marin and often protects her from danger. Her given name means "emerald green". Isshin is an obnoxious kid who loves to tease Marin. He especially likes lifting her skirt to look at her underwear. His family name literally translates to "thin or diluted ink". Better known as Tanzen, he is a bit of a bad boy and friends with Isshin. He does not pick on Marin as much, but is still quite rude to her. The "tan" character in his name comes from a word describing a particular shade of vermillion red. Kabamoto is a large tough-looking boy who hangs out with Isshin and Tanzen but does not pick on Marin at all. Even when she is blamed for the problems caused by Monomakia, he keeps a clear head and does not believe the rumors. The "kaba" character in his name comes from "kabairo", meaning a shade of reddish yellow. The president of Marin's class, Hanazono can be quite bossy and impatient but is not a truly mean person and usually just ignores Marin. On the rare occasions when they meet outside of school, she can be unexpectedly nice. Her given name means "violet". The leader of a trio of girls who are especially cruel, she is never called by name in the show. When Monomakia start causing problems and hurting people she is quick to blame Marin for it and threaten her with physical violence. Unlike the rest of the cast, she has no color associated with her name. This is one of A-ko's sidekicks. She has pigtails and always seems to be laughing at other people's misfortune. The word "ebicha" means "maroon" in Japanese. This is A-ko's other sidekick. She is chubby and pale and always agrees with everything her companions say. The symbol for "kon" in her name means "navy blue". Historical figures Prime Minister Eisaku Sato Eisaku Sato was the Prime Minister of Japan at the time of the series. When Brigadoon appears and Monomakia attack Tokyo, he realizes that Marin and Melan are the only ones capable of dealing with the problem and gives orders for the police not to interfere with their activities. President Richard Nixon Richard Nixon was the President of the United States at the time of the series. He learns about Marin