A senior at high school in Japan, Yukio Washimine found herself thrust into becoming the koumichou of the Washimine Group, a yakuza group in Japan, when the previous leader, Tsugio Banjo, was killed by Balalaika when he tried to stop a conflict between a rival group, the Kosa Council, and Hotel Moscow. Totally unprepared for a life in organized crime, she fantasies running away to Roanapur with her bodyguard Ginji Matsuzaki.