He appears to be a Cold, emotionless and aloof man, though he is considered to be fairly odd. As he has a basement full of dolls and claims that dolls are more intriguing than people. He also seems to have a kind side to those he forgives, such as keeping a cat and loving it. He's not very talkative, and often plays with people and makes fun or teases them. Ayatsuji is also very intelligent, he remains to have a calm demeanor and expression and often calls people "simple-minded".