Episode Title:
A Sword from Over 300 Years Ago
Episode Description:
To Tanjiro's and Kotetsu's disappointment, the sword is tarnished. Hotaru suddenly arrives, now extremely muscular from solitary training to be able to forge a better sword for Tanjiro. Intending to restore the ancient sword, he gives Tanjiro a spare in the meantime. The next day, he attempts to befriend Genya but is rebuffed, though he notices he had regrown a lost tooth. Unbeknownst to all, Gyokko and Hantengu have infiltrated the Swordsmith Village. Hantengu finds Tanjiro, Nezuko, and Muichiro, who quickly beheads him. Two new demons then grow from the severed body and head. One of them, Karaku, blasts Muichiro away with his wind-based uchiwa, and the other, Sekido, nearly electrocutes Tanjiro with his khakkhara. Genya then appears and beheads them both with a sawed-off shotgun and a Nichirin wakizashi. However, the demons split again, now totaling four demons; one hits Tanjiro with a sonic shriek as Nezuko tries to defend Genya from the other, who wields a yari. Muichiro runs back to assist them but finds Kotetsu being attacked by a fish-like demon. Initially electing not to help him, he saves him before he is eaten after remembering Tanjiro's words about helping others eventually helping him.
