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...
Yes. After all, Mr. Haganezuka
forged this sword for me, too.
نعم. لديّ السّيف الّذي طرّقه لي 
.هاغانزوكا-سان أيضًا
Klar. Denn er hatte
mir ja das hier gegeben.
Sí. Me dio una espada forjada por él.
Sí. Esta katana también la forjó él.
Oui, Haganezuka m’a prêté
un de ses katanas.
हाँ। आख़िरकार, यह तलवार
श्री हागानेज़ुका ने मेरे लिए बनाई थी।
Sì, anche questa 
è stata forgiata da lui.
Sim. Afinal, o Sr. Haganezuka 
forjou esta espada para mim.
Нет. Ведь эту катану
тоже выковал он.