Big Brother Demon

One night can change everything. Upon returning home, after successfully selling coal, Nezuko discovers her family brutally murdered in their house, and the only survivor, her oni chan Tanjiro, has been turned into a demon.But he was too stubborn to allow himself to be turned into a man-eating monster without memories, and therefore defies the demonic nature, which causes some confusion.Giyu, the one who finds them and decides to keep them alive, sends them to Mount Sagiri so that they can learn how to kill demons.So she becomes a demon slayer to avenge her family and find a cure for her brother.In the process of learning, Kamado adopts Tomioka. Not that he was against it, just a little embarrassed.While Nezuko is learning how to breathe water, Tanjiro learns that Hinokami Kagura is nothing but a breathing and sword style. Moreover, he is now connected to the ghost of Yoriichi, who will teach him the breath of the Sun and accidentally save his great-great-nephew in the process.They have become stronger, which means they are more than ready to fight the Kibutsuji Mudzan.The first arch: Training with Urokodaki(English is not my native language)