Generally, Tsukiyo shows no interest in people whom she considers "not perfect" in her world and would ignore them. Her trusted doll and only friend is Luna which she's dreaming to go to the moon with one day. She is also shown to sleep with Luna. After her conquest, Tsukiyo was thought to be the same but she has shown signs of change. When she found out about the rumors of Kanon and Keima, she briefly returned back to her old habits.