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 not... I'm not giving that key to anyone!
!لن... لن أعطي ذلك المفتاح لأيّ أحد
D-Den Schlüssel kriegt ihr nicht!
No le entregaré la llave a nadie.
No pienso darle la llave a nadie.
Je… Je donnerai la clé à personne.
मैं वह चाबी किसी को नहीं दूँगा!
Non darò a nessuno la chiave!
Eu não vou entregar a chave para ninguém!
Сказал же: никому не отдам ключ!
Даже если будут пытать!