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...
Or perhaps because there was
no one to pass it on...
...أو ربّما لأنّه لم يوجد من يُورَّث له ذلك
Oder aber, weil der Teufelsjägertrupp
so oft schon vor seiner Auslöschung stand
Y la Compañía Cazademonios ha estado
a punto de ser aniquilada varias veces,
o que, como el cuerpo ha estado
a punto de desaparecer varias veces,
ou bien l’héritage s’est perdu
à cause de toutes les fois
O forse, i cacciatori di demoni
O Esquadrão de Exterminadores já 
foi aniquilado tantas vezes antes...
а может, дело в том, что организация
не раз была на грани уничтожения
ตอนนั้นถึงตอนนี้ มีหลายครั้ง
ที่หน่วยพิฆาตเกือบล่มสลาย