The missing water merchant is found at last—as a mutilated corpse bearing a written confession. The Prince rushes to investigate the dry well at the root of his strange story, but Yukiya isn't ready to clear Koume of suspicion just yet.

Koume confronts her mother and learns the truth about the monkeys' yatagarasu collaborators. Yukiya and the Prince race to the scene, but can they undo the damage done by Yukiya's rash judgment?