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...
The Demon Slayer Corps have a few so-called
empty villages built for such occasions.
يملك فيلق قتلة الشّياطين بعضة قرى
.فارغة بُنيت لمثل هذه الحالات بالضّبط
Aus diesem Grund hat der Teufelsjägertrupp
mehrere „leere Dörfer“ eingerichtet.
La Compañía Cazademonios tiene listas
de antemano unas cuantas "aldeas vacías"
Los asesinos de demonios tienen
aldeas vacías para estos casos.
Les pourfendeurs ont bâti
plusieurs villages vides en prévision,
I cacciatori di demoni
O Esquadrão de Exterminadores tem alguns 
poucos vilarejos vazios para situações como essas.
Как раз на такой случай у истребителей
есть несколько пустых деревень…