Aki, who has been studying child psychology to become a kindergarten teacher, takes up a side job as a private tutor and baby sitter as recommended by her professor. Then she meets a 5-year-old boy named Tsuyoshi. In the dimly-lit room, Tsuyoshi is drawing pictures. What he is drawing is a creepy guy called "Gi" who has the skill to "delete anyone that is unwanted." Then, as Tsuyoshi predicts, people die one after another.