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...
No question, this demon is an Upper Rank!
!لا مجال للشّكّ، إنّه شيطان من الرّتب العليا
Kein Zweifel!
Er ist ein Zunehmender Mond!
Este demonio es sin duda
una Luna Creciente.
Es una Luna Superior, sin duda.
C’est une lune supérieure,
c’est certain !
Questo demone... 
è sicuramente una Luna Crescente!
Sem dúvidas! Ele é um Oni Superior!
Он точно из молодых лун!