Ep. 21: Hyakkimaru and Dororo confront a moth monster that transforms Maimaiyonba.
Aired on August 24, 1969

21
Hyakkimaru detects malevolent energy as Sabame transports his wife Maimaiyonba in a wagon. Maimaiyonba senses Hyakkimaru’s uniqueness and orders Sabame to eliminate him, but Hyakkimaru evades the assault. Upon reaching their residence, the couple discovers Hyakkimaru and Dororo refusing to depart. That evening, a moth-like creature spraying silver powder attacks the travelers, revealing itself as Maimaiyonba. Inside her storehouse, the group finds her moth eggs. The next night, they set a trap; Dororo ignites the monster, allowing Hyakkimaru to destroy it with his blades. Following the creature's death, Hyakkimaru’s leg regenerates completely.
Episodes
- Ep. 17 · Hyakkimaru and Dororo confront the demon Donburibara and the giant tortoise.
- Ep. 18 · Dororo and Hyakkimaru release a sea monster after Dororo retrieves an ancient harpoon from rocks.
- Ep. 19 · Hyakkimaru confronts a possessed canine that transforms into a demon beast near a cliff.
- Ep. 20 · Dororo Takes a Babysitting Job While Hyakkimaru Fights a Spider Demon
- Ep. 21 · Hyakkimaru and Dororo confront a moth monster that transforms Maimaiyonba.
- Ep. 22 · Dororo and Hyakkimaru investigate a deserted village with a mysterious girl named Ochii
- Ep. 23 · Hyakkimaru battles a demon-possessed ancient tree that swallows villagers and woodcutters before he destroys it.
- Ep. 24 · Hyakkimaru confronts a demonic monk who transforms after stealing Dororo from a fish trap.
- Ep. 25 · Dororo and Hyakkimaru confront the demon Tsuchibozu after washing a sutra from beggar Gutaro