Tamayo is invited to the Demon Slayer headquarters - even though she is a demon. Meanwhile, Tanjiro, who is recovering at the Butterfly Mansion, receives a letter from Kagaya.
After talking with Tanjiro, Giyu is able to overcome his past self and decides to join the training. Meanwhile, Tanjiro's wounds have healed enough to join the training, and heads to his first training with the former Hashira, Uzui.
Tanjiro continues his participation in the Hashira Training. Following his impressive performance in basic fitness and stamina drills under Tengen Uzui's guidance, Tanjiro advances to the next stage of training led by Muichiro Tokito.
Tanjiro faces grueling training under Obanai Iguro's harsh tutelage. Pushed beyond his limits, he must overcome trials set by the jealous Obanai before meeting Wind Hashira Sanemi Shinazugawa and Genya, navigating their strained dynamic.