Twenty years ago, Yamashiki (Mitsuru Hirata), who attacked Asada (Kei Yamamoto)—then a politician—and killed Inoue's (Junichi Okada) parents, is released from prison. Public Security monitors Yamashiki's movements. Meanwhile, Ogata (Shinichi Tsutsumi) attends a security meeting for a commemorative ceremony that Asada will attend, and it is decided that Inoue and his team will be in charge of protection. However, the security plan is leaked to the outside by an internal informant. On the day of the ceremony, Yamashiki heads to the venue.