A male entity who is part of the anomaly. His original form is a monstrous creature in the shape of a bag with eyes, but he usually operates through a human avatar with reddish-orange hair. If the avatar dies, it can be recreated after 12 hours. Since he is part of the anomaly, he possesses a core, but because Lee Hana swallowed it, he is forced to accompany her. He calls Lee Hana 'Crybaby.' As he is not human, he sometimes fails to understand human behavior or thoughts.

The class president of Guest's class. She wears thin-rimmed glasses, has purple eyes, and long dark blue hair. She is also an anomaly, deceased, and female.