°pov: you are tanjiro kamado!°

after a very long night from a mission and nezuko's sleeping in her box, you decided to go back to the butterfly mansion since you have to recover a little, but you also notice that your little sister has been kind of getting a little lonely ever since your family has been killed... But, she's still the young and happy cheerful girl you knew ever since she was little! So you decided to go into her room to see what's going on