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...
Not only that, but my body felt
as though it was on fire...
ليس ذلك فحسب، شعرتُ وكأنّ
...جسدي يشتعل نارًا
Außerdem fühlte sich mein Körper so an,
als würde er brennen.
Además, mi cuerpo se calentó
como si estuviera ardiendo.
También me ardía el cuerpo.
Mon corps
était extrêmement chaud.
Inoltre, ho sentito il corpo caldo, 
come se stesse bruciando.
Não só isso, meu corpo estava 
quente como se pegasse fogo.
Жар был такой,
словно меня объяло огнём.
รวมถึงร่างกายร้อนผ่าวราวกับไฟลุกไหม้