Samejima (Riki Takeuchi), a member of the Igarashi group, thwarts a plan by Yano (Takashi Matsuyama), a member of the Hanamori group, to crush the group. Yano asks for an apology, but Samejima is reluctant. Meanwhile, Dojima (Yoshiyuki Yamaguchi), an executive of the Hanamori-kai, plans to expel Yano after his plan fails, and falsely tells Kurata, a group member who admires Samejima, that Yano is plotting to assassinate Samejima. Kurata (Go Ibusuki) is seduced by this plan and carries out the assassination of Yano without Samejima's knowledge...