The war between the Morisada clan of the Keihin Rengo and the Fujioka Sogyo of the Kurokawa clan seemed to have ended when Yasuda, a young leader of the Morisada clan, killed Fujioka, the leader of the Fujioka Sogyo. However, Fujioka’s last words and the murder of Kunimoto, whom he had looked up to like a parent, caused Yasuda to vow to assassinate Kurokawa clan leader Nishino, without regard for his insulation.