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...
but over a short span, it will be a chance to go all out
to raise the bar of the entire Demon Slayer Corps.
ولكن على مدى فترة قصيرة، ستكون هذه فرصة لبذل
.كلّ ما لدينا للرّفع من مستوى فيلق قتلة الشّياطين
Lasst uns nun
die Gelegenheit ergreifen,
pero esta es una oportunidad para subir
la fuerza de la compañía en poco tiempo.
pero reduciendo el periodo,
mais durant ce court répit,
Dobbiamo approfittare dell'occasione
Mas por um curto período de tempo, teremos uma chance 
de elevar o nível de todo o Esquadrão de Exterminadores.
появится редкий шанс
แต่ในช่วงเวลาที่สั้นนี้...