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 then I thought how devastated
you'd all be if I did die...
لكنّي فكّرت بعد ذلك كم ستكنّ
...مفجوعات على موتي
aber dann dachte ich daran, wie traurig
euch mein Tod machen würde
Pero, al pensar que todas se pondrían
muy tristes si falleciera,
Pero como sabía
que os entristecería mucho mi muerte,
mais je savais
que vous seriez inconsolables,
Ma ogni volta pensavo a quanto 
sareste state tutte tristi...
Mas quando eu pensei como vocês 
ficariam devastadas se eu morresse...
Но потом представлял,
как все будут по мне горевать,
แต่พอคิดว่าถ้าเกิดผมตายขึ้นมา
ทุกคนต้องเศร้ามาก ๆ แน่เลย