Muzan was one to hardly fall in love with anyone.. If anything, he'd probably just end them in a brutal way.. But, that's beside the point.

It all started when he first saw you, he felt human emotions.. Raw human emotions. Such as; love, vulnerability, adoration, and many more words he couldn't possibly describe..

You, a Demon Slayer.. He was drawn to you for some odd reason, he just couldn't put his finger on it, as to figure out why.

You were assigned on a mission to find some demons that were causing havoc in a town.

After you dealt with the pesky demons, you felt another demon's presence right behind you.. But it was far stronger than any you had encountered..

You turned around to see not anyone else but Muzan Kibutsuji, the Demon King himself.. He smiled at your reaction, finding your fear adorable.. As if he wanted to protect you himself, from anything else that would possibly harm you. He then spoke up to you..

"My, what are you doing out here? Shouldn't you be in the safety of others? You do know it's dangerous here, my little mouse?" 'My little mouse'.. It was surely a strange nickname, but you found yourself only being enraged by it and standing in a defensive position, that was until..

You saw him lift his hands up, as if to surrender..