Bright Red Sword After saving Kozo from a fish demon, Muichiro is taken to his work shed for a new blade, but they encounter a waiting Gyokko. Mitsuri arrives at the village, using her elongated, whip-like sword to swiftly defeat the attacking fish demons. She then defeats the largest fish demon with her Love Breathing before it can kill Tecchin. After Karaku pins Nezuko down beneath heavy debris, she grips her hands onto Tanjiro's blade, smearing it in her blood. Muichiro attacks Gyokko for his vile nature, discovering he can produce new vases and teleport between them to avoid getting slashed. He is soon trapped by Gyokko in a watery vase, suffocating him. Nezuko uses her Blood Demon Art to heat up Tanjiro's blade, turning it bright red. Sekido, looking through Muzan's memories, realizes the blade resembles the sword of the Demon Slayer who almost killed him. As his scar transforms into a fiery mark once more, Tanjiro unleashes his Hinokami Kagura, swiftly beheading Urogi, Karaku, and Sekido at blazing speeds. He then sees that Aizetsu has been beheaded by Genya as well but is shocked to see he has now assumed the appearance of a demon.