A young boy, Takeshi, is told by a mysterious woman that he will die after picking up a ticket inside a red bag. While boarding the subway train home, he is pulled outside of the train, which briefly stops when the conductor is distracted by a figure outside. The next day, Takeshi's classmate, Noriko Kimura, finds the ticket and shows it to her sister, Nana, experiencing a vision of a baby and her mother in the process.