Following the intense battle in the Entertainment District, Tanjiro Kamado travels to the hidden Swordsmith Village to have his damaged Nichirin sword repaired. While there, he encounters the Love Hashira, Mitsuri Kanroji, and the Mist Hashira, Muichiro Tokito, while also reuniting with his fellow demon slayer Genya Shinazugawa. The peaceful atmosphere is shattered when the Upper Rank demons Hantengu and Gyokko launch a surprise assault on the village. As the village faces destruction, Tanjiro and his allies must push their limits to protect the swordsmiths who forge the weapons essential to the Demon Slayer Corps. The arc delves deeper into the origins of the Hashira and the terrifying power of the Upper Rank demons, forcing the protagonists to unlock new levels of strength and resolve in a desperate fight for survival.