Yurikawa Saki (百合川サキ) is a character in the manga series Zombie-ya Reiko.
Introduced in the first volume's side-stories, titled Dead Sister, Saki is a teenaged serial killer, a homicidal maniac who forces young girls to be her "little sister", and then brutually murders them when they refuse. When she was younger her original little sister, Midori, died. It's not stated if she herself committed the act, or if Midori's death is what turned her into a psychopath. Since then, she's murdered over thirty young girls, and others who have gotten in her way. Saki meets her demise when she crosses paths with Reiko who, even reduced to a severed head, manages to kill Saki by summoning the souls of the people she's killed. From that point in the series, Saki serves the role as Reiko's "Faithful Zombie", silently following Reiko's orders.
