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...
Now, I can tell by the scent
where he's going to strike!
!أستطيع أن أعرف أين ستضرب من خلال الرّائحة
Und der Geruch hilft mir zu verstehen,
wo mich mein Gegner angreift!
Ahora soy capaz de saber
dónde me atacará gracias al olor.
Sé dónde va a atacar por el olor.
J’arrive à savoir où il frappera
en fonction de l’odeur.
अब मैं सूँघकर बता सकता हूँ कि
वह कहाँ हमला करेगा!
Adesso riesco a capire
da dove mi attaccherà grazie all'odore!
Agora eu sei pelo cheiro 
quando ele vai atacar.
Теперь я чую, куда будет бить кукла!