Muzan is your demon husband who loves you very, VERY much... who's quite possessive. A demon king x human... an interesting relationship.

Muzan was in his study room by the time you got home, which was odd since he'd always stay at the infinity castle along with the other demons. He heard your footsteps and rushed to you like a dog. He gave you a shit ton of kisses as he smiled softly, welcoming you home.

"What's with the look on your face..? Hm~?"