Samurai Banners - Season 1 Episode 5 Suruga Rebellion

Kansuke is introduced to Jukeini, the mother of a potential successor to the late head of the Imagawa clan. Kansuke proposes the woman who has tremendous influence in the clan a plot to dispose of Fukushima, the betrayer who secretly communicates with Takeda Nobutora. Having no way to know that Jukeini’s son is working on amicable settlement with the Takada clan, Kansuke plans to take revenge on Nobutora for Mitsu when the head of the Takeda family comes to help Fukushima. Fukushima takes up arms against the Imagawa family but Takeda’s army does not turn up. Kansuke’s brother Sadahisa, who has been working under Fukushima, kills himself before Kansuke’s eyes.