Set in 1932, amid the rise of militarism after the establishment of the Manchukuo colony in Northeast China, the story centers on a trio of karateka. Studying under their aging master in a small dojo in the woods of central Kyushu, Choei, Taikan and Giryu face a company of kempeitai military police come to requisition their dojo for use as a military base.

Not long after the end of the Tohoku conflict, Kyowakai Chairman Kudo (Hakuryu) is attacked. He narrowly survives, but soon after, Himuro (Yasukaze Motomiya) is also shot by a hitman. Thanks to a counterattack led by Tamura (Yoshiyuki Yamaguchi) and the others, the assailants are captured, revealing that the attack was ordered by Sakashita, head of the Sakashita-gumi in Fukui, a group connected to the West Japan Mutsumikai. Seeking revenge, Kawatani (Hitoshi Ozawa) takes the lead in preparing Kyowakai for a full-scale war against the West Japan Mutsumikai, mobilizing the entire organization. However, Kudo intervenes and orders a withdrawal from Fukui.

A detective breaks all rules of ethical conduct while investigating a colleague’s involvement in drug pushing and Yakuza activities.

Himuro (Yasukaze Motomiya), assistant Wakagashira of Kyowakai, joins Tamura (Yoshiyuki Yamaguchi) and other Kyowakai executives to track down Fukumoto, chairman of the West Japan Mutsumikai, the mastermind behind the assassination plot against Kudo (Hakuryu), Kyowakai’s chairman. Himuro and his men infiltrate the meeting site, preparing to eliminate Fukumoto—but Yashiro, head of the Yashiro-gumi, pretends to cooperate while secretly leaking information to the Kudo-gumi. Seizing the opportunity, Zaizen, assistant Wakagashira of the Kudo-gumi, makes his move—not against Fukumoto, but against Himuro himself. Meanwhile, Kawatani, Kyowakai’s Wakagashira, is delivered a shocking revelation by Kudo.

Second film in the 'Conquest' series.

Fourth entry in the 'Conquest' series.