girl, Junko is a talented artist and she is seen as a threat by Emi Mizuchi who vows to sabotage her. In the OVA after Emi finds her beautiful painting, she has it stolen. Junko is kidnapped, forcefully drugged and then left dead on train tracks. Her death makes Saki's mission personal. In the manga, she was killed by Ayumi and her gang, who made it look like a suicide initially, but Saki noticed that Junko was bitten by a venomous snake. Saki's rival in prison. Agura is a tough, masculine looking woman who dislikes Saki at first but then begins to respect her. Eventually she is released from reform school with Chie, and acts as her bodyguard. She only appeared in the manga. / Saki's kind friend in prison. She only appeared in the manga. She has a pleasant demeanor and is less aggressive than the other girls. She is released from reform school and returns to high school. Chie joins a biology club that loves to collect insects, and since then discovered a species of butterfly that was named after her. She and Agura are eventually involved in a missing persons case that Saki investigates. Saki's hyper friend who is also very vulnerable and ends up being attacked a lot by the other girls in the prison. To help Saki escape from prison, she ends up seducing the prison warden who is a lesbian. She used to be in a drama club, and often played the roles of men. She only appeared in the manga. Jin's partner. She only appeared in the manga. Hikuidori A scheming, sly cell mate of Saki's. She has a mole under one eye. Hikuidori becomes friends with Saki at first but then betrays her and turns out to be an informant of Remi's. She only appeared in the manga. The patriarch of the antagonist Mizuchi crime family. Gozo uses his influence to control his family's power over Takanoha High school. He is a politician, and frames his rivals for the crimes committed by his daughters. The youngest sister who is an artist. Emi is an egomaniac who sees herself as a great artist when at best her talent is borderline, which leads her to use her father's influence to bribe judges and copy the works of other artists. Emi steals Junko's work and copies from it to win an art contest. In the