During the boulder training, Tanjiro is able to move the boulder thanks to Genya's training advice. However, Tanjiro has used all of his power to do so and he is saved by Himejima after he collapses. Himejima, moved by Tanjiro's genuineness, begins to talk to him about his past...
I continued to smash in
the demon's head until daybreak.
.واصلتُ سحق رأس الشّيطان حتّى بزوغ الفجر
Bis die Sonne aufging,
Seguí golpeando y aplastando
la cabeza del demonio
Estuve golpeando la cabeza del demonio
Jusqu’au petit matin,
Fino al sorgere del sole
Eu continuei a bater na cabeça
 do demônio até amanhecer.
Я раз за разом крушил его череп
до тех пор, пока не взошло солнце.