Arc 12The Final Battle and Tanjiro’s Fall
The Demon Slayers and Sasuke fought Muzan through the night, finally destroying him at sunrise, but Muzan’s remaining flesh turned Tanjiro into a new Demon King. As the survivors tried to save Tanjiro, Sasuke entered his corrupted inner world to confront Muzan’s will.
- Muzan escaped the crater in a concentrated monstrous form, but the Hashira turned their weapons bright red and used Yushiro’s talismans to attack his visible hearts and brains.
- Inosuke was gravely wounded while protecting Kanao, and Zenitsu overcame his fear to save her and sever Muzan’s Bone Whip.
- Sasuke awakened and used Amenotejikara to save the wounded fighters and create openings for the Hashira, while Tanjiro linked the Sun Breathing forms into the Thirteenth Form.
- Muzan tried to escape as a blood cloud, but Sasuke compressed his scattered cells into a sphere, and Tanjiro and the survivors struck it as dawn broke.
- Muzan disintegrated in the sunlight, but his remaining flesh entered Tanjiro, who revived as a demon able to endure the sun.
- Demon King Tanjiro attacked the survivors, but Nezuko’s plea made him falter, and Sasuke saw that Tanjiro’s soul was still resisting Muzan.
- Kanao used her eyesight to locate Tanjiro’s soul and attempted to inject the humanizing medicine, while Zenitsu caught it and Inosuke distracted Tanjiro.
- Kyojuro and Giyu restrained Tanjiro so Sasuke could enter his inner world, where Muzan threatened to seize Tanjiro’s body and sent black blades at Sasuke.