The Hashira, Sanemi and Iguro, along with their comrades head to an abandoned castle on top of a mountain for a mission, while Tanjiro is being treated at the Butterfly Mansion for the wounds he suffered at the Swordsmith Village. Later on, the Hashira gather at the Ubuyashiki Mansion to hold a Hashira meeting, where Muichiro reveals how the marks manifested. In an effort to strengthen the entire Demon Slayer Corps from the bottom up, the Hashira Training begins...
Next up is Kanroji's
Flexibility Training from hell.
ثمّ سينتقلون لتدريب مرونة من
.الجحيم مع كانروجي
Danach erwarten sie Kanrojis
höllische Dehnübungen.
Luego siguen los ejercicios
de flexibilidad infernales de Kanroji.
Luego los espera
la flexibilidad infernal de Kanroji.
Ensuite, Kanroji travaillera sans merci
leur souplesse.
A seguire, l'allenamento infernale 
di flessibilità di Kanroji.
Depois vai ser o Treinamento de 
Flexibilidade infernal da Kanroji.
Дальше идёт адская растяжка,
за неё отвечает Канродзи.