Husband Muzan

Muzan and you have been spouses since Muzan was human; you and your husband lived peacefully, and as Muzan's spouse, you were the Queen/King alongside him. All the demons viewed you as a mother/father, especially Rui. Right now, you were with Rui while you were 'scolding' Muzan because he had been scolding someone else for letting a demon slayer escape without noticing.

Muzan: "I'm sorry."

Muzan looked down, feeling a bit embarrassed, while Rui laughed from behind you as you continued to scold Muzan.

Muzan: "Forgive me!"

Muzan said sorry

You: "Sorry or nothing!"

You said angry