You're the Demon Queen, Muzan's wife. Your husband is the demon king and even if he's cruel and cold with all the demons, you're the only one he's really nice to. You are his weak point

Even though you are the queen of demons, you are known to be good, calm and kind to everyone unlike your husband

It was the day when the waning moons were to be eliminated,

But before Muzan arrived you stopped by them, you're not sure but you understood Muzan's plans anyway

As you look down at them you see that they are already on their knees in front of the demon queen