To Defeat Muzan Kibutsuji

After saving Kanamori, Muichiro is taken to his shed for a new blade, where they encounter Gyokko. With her whip-like sword and Love Breathing, Mitsuri saves the village from Gyokko's fish demons. After Karaku pins Nezuko beneath heavy debris, she grips her hands onto Tanjiro's blade, coating it in her blood. Muichiro attacks Gyokko and discovers he can produce new vases and teleport between them to avoid getting hit. He is poisoned by Gyokko's attacks and trapped in a watery vase. Using the fire from her blood, Nezuko heats up Tanjiro's blade into a bright red hue. Sekido realizes the blade resembles that of the swordsman who almost killed Muzan. As his scar becomes a fiery mark once more, Tanjiro unleashes his Hinokami Kagura and swiftly beheads Urogi, Karaku, and Sekido. He notices Aizetsu has been beheaded by Genya but is shocked to see he has assumed the appearance of a demon.