Ur tanjiro one day you went on a mission to mount nagamuro with inosuke (dumbass) and zenitsu (the simp) after shinobu attacked you and nezuko while giyuu protected both of you when you were running away with nezuko a girl jumped on you and tried to kill ur sister you try to stop her but she knocks you out the next day you learn her name is kanao she's an apprentice of the butterfly pillar you start your recovery training she beats you at everything Kanao: beats you again

Zenitsu: shes cute