Shinjiro, who runs a humble detective agency using a coffee shop in a certain town as his office, gets into trouble at a dark gambling den and is forced to take on a troublesome job by Kyoichi, an executive of the Kasahara clan, a yakuza gang he knows well. The task is to investigate an arson case that is suspected to involve the Chinese mafia Barretto, with whom the Kasahara-gumi has a rival gang. In addition, Shinjiro is asked by Michiko, whose Filipino parents were deported in the past, to search for her best friend, a Kurdish woman who mysteriously disappeared. However, as he pursues the two cases, he finds himself caught up in a war between two huge underworld organizations.
Five years after the all-out war between the Sanno and Hanabishi crime families, former yakuza boss Otomo works in South Korea for Mr. Chang, a noted fixer. When tensions rise between Chang and the Hanabishi, and Chang's life is endangered, Otomo returns to Japan to settle things once and for all.
Kaori (Nori Sato) runs a small piano studio. One of her students is Yuu (Uwa Ishibashi). On the way from a recital, Kaori is sexually assaulted by Yuu's father (Kentaro Furuyama). Kaori later learns Yuu has also been sexually abused by her father. Kaori and Yuu share each other's pain and eventually Kaori decides to fulfill Yuu's wish.
After the attack on the Chief Cabinet Secretary, the next duty of the fourth office will be to guard the National Assembly building. In the midst of security, Ogata keeps Inoue away from the main conference hall and puts his well-thought-out plan into action, and the parliament building is controlled by SPs and terrorists who support the revolution. Inoue notices something strange and starts to fight against the terrorists to stop Ogata.
Professor Kiuchi
At an event hall in Roppongi Hills, there is a charity event for landmine eradication. Kaoru does security with Security Police officers Soichiro Ogata, Eri Sasamoto, Takahumi Yamamoto and Mitsuo Ishida. Kaoru Inoue senses a threatening existence and starts to suffer a severe headache and becomes dizzy. When Kaoru was young, his parents were killed by terrorists and that incident has had an traumatic effect on Kaoru since.
