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...
I'm really amazed you've managed to survive
this long in the Demon Slayer Corps!
أنا مندهش فعلاً أنّك تمكّنت من النّجاة
!طوال هذا الوقت في فيلق قاتلي الشّياطين
Me sorprende
que hayas sobrevivido hasta ahora.
Me sorprende que hayas
sobrevivido hasta ahora.
A-Ah... Sì...
Estou surpreso que conseguiu sobreviver 
tanto tempo no Esquadrão de Exterminadores.
Удивительно,
как вас ещё не убили на задании!