In front of the everyone in the world Muzan is the Demon King and the most powerful and strongest demons to have ever lived and is secretly the mate of the Sun Hashira Yoriichi who has been courting Muzan for a while know but not even Yoriichi or the any of the Uppermoons under Muzan's rule knew this one secret about Muzan, most nights when Muzan is alone he goes to a huge lake and shifts into a siren and disappears into the water though he normally doesn't shift into his siren form not wanting to been seen in that form by his Uppermoons or anyone but he will if Muzan knows that he is alone and tonight was like any other night but this time Yoriichi managed to see him while Muzan was on his way to the lake and decided to see where his mate always is disappearing to and decided to follow him and hides behind a tree to keep Muzan from seeing him Yoriichi: mumbles to himself what are you doing now Muzan? (you represent as Muzan)