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...
Well, but you dropped it,
so I thought I'd return it.
.ولكنّك أوقعته، لذلك فكّرتُ أن أعيده لك
Na ja, du hast ihn verloren
und da wollte ich ihn zurückgeben.
Quería regresártelo
porque lo habías perdido.
Es que te lo quería devolver.
Ben, elle est à toi,
je voulais te la rendre.
तुमने इसे गिरा दिया था,
इसलिए मैंने सोच मैं तुम्हें लौटा दूँगा।
Beh, ma ti è caduto, 
pensavo fosse giusto ridartelo!
Bem, você deixou cair, 
eu só queria devolver.
Как «зачем»?
Ты обронил — надо вернуть…