Yoriichi Type Zero is destroyed at the end of Tanjiro's training, but a sword from over 300 years ago appears from inside. Kotetsu gives Tanjiro the sword, however it is badly rusted. At that moment, Haganezuka appears and takes the sword with him to perform a grueling whetting process handed down within his family line. Meanwhile the presence of demons are inching closer to the village...
This is a hazard!
!هذا خطير
Wer stellt hier denn nachts eine Vase hin?
Das kann böse ins Auge gehen …
Qué peligroso.
¿Quién lo habrá dejado justo aquí?
Está en muy mal sitio.
C’est dangereux de le laisser ici.
Qui a fait ça ?
यह टूट सकता है!
È pericoloso, dai! Si può sapere 
chi ha lasciato un vaso in un posto del genere?
Que perigo!
Кто догадался оставить на дороге вазу?
А вдруг разобьют?