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'll fix it, no matter what!
!سأصلحها مهما كلّف الأمر
Ich repariere sie schon!
¡Yo lo repararé cueste lo que cueste!
¡Te juro que lo repararé!
Je le réparerai, c’est promis !
चाहे जो हो, मैं उसे ठीक कर दूँगा!
La riparerò, costi quel che costi!
Eu dou um jeito de consertar!
Я её обязательно починю!