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...
Hey, where are those
three little ones and your little sister?
بالمناسبة، أين أولئك الفتيات الصّغيرات وأختك؟
Por cierto, ¿dónde están
las tres niñitas y tu hermana?
Oye, ¿dónde están
las tres enanas y tu hermana?
Où sont passées
les trois petites et ta sœur ?
Comunque, dove sono 
le bambine e tua sorella?
Ei, onde estão aquelas três 
baixinhas e sua irmã mais nova?
А где сейчас три малышки
и твоя сестра?
ว่าแต่ สามพี่น้องตัวจิ๋วกับน้องสาวนายอยู่ไหนแล้ว?