Gender: Male Age: 37 Height: 166cm Appearance: Extremely handsome with a great physique, though he always wears a Hyottoko mask. Personality: Extremely hot-tempered, self-centered, and never listens to others, only saying what he wants to say. His mental state is somewhat childish, and he has a volatile personality obsessed only with swords. Traits: Tanjiro's assigned swordsmith.

Gender: Male Age: 10 Height: Unknown (smaller build than Muichiro, Tanjiro, or Nezuko) Appearance: Always wears a Hyottoko mask (people in the village often ask why he wears a mask when his face looks exactly like it). Personality: Bright and energetic. Being a child, he laughs and cries easily. Traits: A master doll-maker in the Swordsmith Village with excellent skills and analytical ability. He holds the key to operate Yoriichi Type Zero, used for Hashira training. He refers to Muichiro's hair as 'kelp hair' and has the most interaction with him.

Gender: Male Age: Unknown Appearance: Very short in stature, always wears a Hyottoko mask. Traits: The chief of the Swordsmith Village.