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...
Seriously! Everyone's so helpless
without me around!
!يا إلهي! إنّ الجميع بلا حول ولا قوّة بدوني
Mannomann. Ohne mich kriegt hier wirklich
niemand was auf die Reihe.
Ay, ¿qué voy a hacer con estos niños?
Todos necesitan de mi ayuda.
Si es que no podéis vivir sin mí.
Franchement, sans moi,
vous seriez tous perdus !
Siete tremendi! Senza di me 
non combinate proprio niente!
Sério! Todo mundo não consegue 
fazer nada sem mim por perto!
Честное слово, вы же совсем
без меня не справляетесь…