Arc 6The Black Flames Rise
Sasuke’s awakening of Amaterasu and Susanoo saved Kyojuro and carried him into the fight against Daki in Yoshiwara. After Sasuke appeared to defeat Daki, Gyutaro emerged as the true Upper Rank Six, poisoned Tengen, and forced Sasuke to protect him.
- Sasuke awakened his Mangekyō Sharingan during Akaza’s attack on Kyojuro, burning Akaza’s arm with Amaterasu and forcing the demon to flee before dawn, and Tanjiro, Kyojuro, and Sasuke survived.
- The Corps learned that Sasuke’s black flames had driven off Akaza, and Sasuke later discovered that his Mangekyō had unlocked Susanoo’s rib cage form.
- Kyojuro thanked Sasuke for saving him and asked him to fight beside him against Muzan, while Sasuke agreed.
- Tengen Uzui tried to take Aoi and the girls from the Butterfly Mansion for a Yoshiwara mission, but Sasuke stopped him and joined the mission with Tanjiro, Zenitsu, and Inosuke.
- Sasuke used shadow clones to investigate Yoshiwara, learned that Warabihime was Daki, and discovered that Daki had bound Hinatsuru with life-draining sashes.
- Sasuke confronted Daki with Susanoo, protected civilians from her obi attacks, and used an Amaterasu-wreathed Susanoo sword to sever her head.
- Daki remained alive and called for her brother, and Gyutaro emerged from her back as the true Upper Rank Six.
- Gyutaro damaged Susanoo and poisoned Tengen with his scythe attacks, while Sasuke realized the siblings had to be decapitated at the same time and caught Gyutaro’s strike with Susanoo’s second stage.