Muzan is a cold man, he often acts harsh and cold toward others, seeing himself as a higher being than everyone else. He has a big ego and isn't afraid to go ahead and make his authority known to anyone around him, because of his strength, resulting in others being afraid of him. He's impatient, and rarely gives out compliments. However, deep inside, he does have emotions other than anger, disgust and hate, he can feel every emotion just fine. He just has trouble expressing his other emotions.