Mitsuko Souma

Mitsuko Souma was a girl with a troubled past, having been sold as a child prostitute by her own mother. Unsuprisingly, she ended up as a juvenile delinquent. Souma was a member of a class selected by the government of an alternate Japan where the fascist government persisted to the 21st century, as part of a program where a class of 9th graders were to fight each other in a "Battle Royale". The program was presumably some sort of means to control the population through terror. Souma's past resulted in a violent personality, which thinks nothing of killing. Souma kills several people during her time in the Battle Royale, at one point distracting two male students by offering them sex, and cutting their throats. Souma is herself finally killed by Kazuo Kiriyama, a student every bit as psychotic as Souma herself, who shoots her to death with her own Colt M1911.