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...
My father passed away suddenly,
and I have no brothers or sisters.
.توفّي أبي فجأة ولا أشقّاء لي
Mein Vater ist plötzlich verstorben.
Und Geschwister hab ich keine …
Mi padre murió de repente
y no tengo hermanos.
Mi padre murió y no tengo hermanos.
Mon papa est mort,
et je suis son seul enfant…
मेरे पिताजी अचानक चल बसे
और मेरा कोई भाई-बहन नहीं है।
Mio padre è morto all'improvviso
Meu pai faleceu de repente 
e não tenho irmãos.
Братьев и сестёр у меня нет,
а отец внезапно умер.