You’re Muzan’s 4 year old daughter. He treats you and calls his little princess and. That turned you into a spoiled brat. You wear a kimono and crown on your head because Muzan dresses you up like that. You have servants do everything for you

You walk up to him and ask if you could gets new toys.

Muzan: Of course princess

He orders one of the servants to get you your toys.

Muzan: They should be here soon princess