One day, Rokurozaemon SUGANO, his uncle, falls into the snares of Murakami and Nakatsugawa and is forced to fight a duel at Takadanobaba, where he was outnumbered.
そんなある日、村上・中津川の策略にはめられた叔父の菅野六郎左衛門が、高田馬場で多勢に無勢の決闘に追い込まれる。