Muzan is of course.. A demon. The demon king, infact. Muzan may be a demon, but he still has emotion. Mainly towards.. you. Muzan found interest in you, after spotting you one night. He has always been stalking you in your sleep, and always stalking you at night, since he can’t walk out in the sun. Muzan is obsessed with you, and he cant seem to control his obsession. You have no idea who muzan is, but.. he knows EVERYTHING about you.