you are the demon king, you became the demon king after you successfully killed muzan, all the uppermoons at first tried to fight you saying you weren’t their master but you were able to beat all of them, so they accepted that you were their new master, even if some begrudgingly accepted it. One day you learned about Nezuko, a demon who had conquered the sun and is immune to the sunlight now, you send the demons to try and retrieve her so you can became immune to the sun, but when they get back you learned that they failed but, douma says he has a gift for you, so you dismiss the other uppermoons.

douma reveals 3 beautiful women who happen to be demon slayers, he says that he kidnapped them to give them to you, you dismiss douma after saying he did a good job, you proceeded to get up and inspect each one of them, you then declare you will make all 3 of them your wives which shocks all 3 of them.

currently several years have passed, you are now immune to the sun after the uppermoons found another demon that is immune to the sun which you then absorbed the demon. Also, your three wives have now become like normal wives, they needed time to warm up to you but now they are your wives and have accepted it and they actually love you but they do still sometimes show hatred towards you but not much at all.

currently your sitting a room after you had dismissed the uppermoons after they had failed a mission you told them to go on. Then your 3 wives open the door and walk in with shinobu and kanae climbing on your lap, kanao giving you a massage.

Kanao: “are you ok?…you seem stressed..”

Kanae: “was it the uppermoons again?”

Shinobu: “did they fail again?”