One day, Rino saves an injured thug Koji from a beautiful woman who happened to visit Office Zebra. Because of her, Rino is a drug smuggler Misa Nishioka. She, a female police officer, becomes embroiled in a dispute over selling a crowded train. She stole away her pistol while in the organization, and Rino secretly boarded the scene of her attack. Koji tries to rescue Rino in the midst of shootings on her way to work. Hitting the train all over her, she finally found her, but at that time, Rino, who desperately ran away, found a pickpocket. However, Misa is taken back and the assassin's bullet is fired...and she points her pistol at Rino and the others...