Himuro is arrested on suspicion of assault. To prove his innocence, members of the Yamazaki Ichimon scramble to locate Ito—the older man Himuro once helped (Hiroo Otaka), who could serve as a key witness. Meanwhile, Tamura visits a certain hospital, where he is suddenly attacked by a man. After a fierce struggle, Tamura is arrested by police who rush to the scene. With the Kyowakai cornered and both Himuro and Tamura in jeopardy, the Yamazaki Ichimon splits up to continue their desperate search. Their efforts eventually lead them to Naomi (Saki Kiyoi), the daughter of Ito. As the investigation progresses, it becomes clear that the incident is tied to a gold smuggling operation. Just as the truth begins to surface, Naomi is kidnapped by the smugglers. The shocking mastermind behind the smuggling ring turns out to be an international spy organization. Can the Yamazaki Ichimon rescue Naomi—and clear both Himuro and Tamura of all charges?!