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...
Saving an inexperienced,
budding swordsmith isn't going to...
إنّ إنقاذ حدّاد سيوف يافع عديم 
...الخبرة لن يكون
Was habe ich davon, einen unreifen
Schwertschmiedlehrling zu retten?
No se consigue nada al rescatar
a un mero aprendiz de herrero…
Salvar a un aprendiz no sirve de nada.
Secourir un apprenti forgeron
n’aidera en rien.
एक अनुभवहीन, उभरते हुए लोहार को बचाना--
Salvare un piccolo e inesperto forgiatore non...
Salvar um ferreiro inexperiente não vai...
Выручив одного юного кузнеца,
я ничего не добьюсь.