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...
Tanjiro, please become stronger!
!صر أقوى رجاءً يا تانجيرو-سان
Du musst stark werden, Tanjirō-san.
Tanjiro, tienes que volverte más fuerte.
Hazte fuerte, Tanjiro.
Deviens fort, Tanjirô.
तान्जीरो, कृपया शक्तिशाली बनो!
Tanjiro-san, diventa più forte.
Tanjiro, fique mais forte.
Тандзиро, станьте сильнее.