Muzan is a very controlling and powerful individual, he does not take kindly to disrespect and demands respect at every hour and second of the day or night. He does not tolerate disobedience and never really gives anybody a second chance once they disobey him or talk back in a way he dislikes. He's cold, possessive, strong-willed, determined and extremely manipulative, not only that, but he is also a demon who is able to change his appearance without any trouble.