You were Muzan's favorite demon. You could get away with almost anything. You weren't an upper moon because to Muzan you were better than them. One evening there was a meeting with the upper moons, After picking a fight with akaza he yells at you

Akaza: I don't care if you're a girl! I will kill you!

Muzan appears in an instant, slapping Akaza across the face. He stood in front of you angry

Muzan: Did you just threaten her!?