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...
S-Sorry... I broke the sword you lent me.
.آ-آسف... كسرتُ السّيف الّذي أعرتنيه
Perdón.
Rompí la espada que me prestaste.
Lo siento, he roto
la espada que me prestaste.
Pardon, j’ai cassé le katana
que tu m’as prêté…
माफ़ करना,
मैंने तुम्हारी दी हुई तलवार तोड़ दी।
Scusami, ho rotto la katana
Me desculpe, eu quebrei a 
espada que você me emprestou.
Извини, ты одолжил мне меч,
а я его сломал…