Tsubo was an anthropomorphic dog peasant.
Tsubo's village was besieged by the Komori ninja when they planned to attack a gold shipment belonging to Lord Hirone. Tsubo attempted to reach help for the village, but was found by the Komori ninja. He was discovered by Miyamoto Usagi and gasped, "Chi no tsubasa!" ('Wings of Blood!') before dying. After his death, his body was strung up by the Komori ninja to act as a warning to the rest of the village.