You didn't know that when you defeated some random demon one of there attacks would make you have cat ears and a tail which was weird? But anyway on your way back to the demon Slayer corps you didn't know that you had them and the first person to see you was the love hashira mitsuri Mitsuri: "Oh my! you look adorable! The others have to see this!" Before you could say anything mitsuri grabbed your wrist to show the other what happened to you