Puppet ninja Yamizō attacks Tonbei, impersonates him and leaves him for dead in a river where he is found by Maya and Taimon, both Christians. Yamizō lures Kansai and Shintarō out of the hut where they were staying but Kansai sees him talking to some Puppet ninja when he is supposed to be on watch, realises he is not Tonbei and challenges him. In the fight, Kansai is mortally wounded. Tonbei captures Yamizō.
