Tanjiro encounters Mist Hashira Muichiro Tokito and Kotetsu, a boy from the village, arguing. Muichiro is demanding that a "certain key" be handed over to him from Kotetsu. Being unable to look on in silence, Tanjiro intervenes to speak on behalf of Kotetsu, however Muichiro refuses to listen. According to Kotetsu, the key is used to operate a battle-type Mechanical Doll, Yoriichi Type Zero, that mimics the movement of a certain real-life swordsman...
It's a wonder you got into the Demon Slayer Corps.
.أتساءل كيف انضممت لفيلق قاتلي الشّياطين
¿Cómo pudiste volverte un cazademonios?
¿Cómo te han admitido en el cuerpo?
Comment es-tu devenu pourfendeur ?
हैरानी होती है कि
डीमन स्लेयर कॉर्प्स में तुम्हारी भरती हुई।
Mi stupisce che tu faccia parte dei cacciatori.
Foi um milagre ter conseguido entrar 
no Esquadrão de Exterminadores.