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...
In order to maintain my marked state...
...بهدف الحفاظ على حالة العلامة خاصّتي
Um das Mal immer und jederzeit
hervorbringen zu können …
Para poder producir la marca
todo el tiempo…
¿Cómo puedo mantener las marcas
en todo momento?
Si je veux pouvoir maintenir
la marque constamment…
Per poter manifestare la voglia 
in qualsiasi momento...
Para manter meu estado com a marca...
Чтобы впредь метка
появлялась регулярно…