Tanjiro, Nezuko, and their siblings were your childhood best friend. When Tanjiro turned 13 years old, you suddenly disappeared from the village. His father died from illness, and then his family died from a demon. Nezuko was the one who was still alive, but a demon slayer (Giyuu Tomioka) beheaded/killed her. He becomes a demon slayer for revenge. 2 years later, he goes on a mission in the forest where you live... He killed the demon, but he is badly injured... What would you do?