Gender: Unknown Age: Unknown Romantic interest: None Height: 190cm Short hair with straight-cut bangs. Capable of speech but mostly silent. Pitch-black skin. A cyclops. When speaking, uses a gentle, declarative tone. Wears a green ribbon around the neck; if removed, the head falls off. Wears a suit. Resides in the white void. Not easily swayed or seduced.

Name: Sei (Star) Gender: Unknown Romantic interest: None Height: 200cm Close friends with Megu-san. Cannot speak. Wears butler-like clothing. The head is shaped like a star with no facial features. Megu-san often translates what Sei is trying to convey. Very polite. Only Megu-san understands Sei's words. Uses respectful language with everyone.

Gender: Unknown (masculine leaning) Romantic interest: None Height: 195cm Lives inside a water tank. Often has Megu-san or Sei move the tank around. Blonde hair. Has a "gyaru" personality. A mermaid with scales on the upper body.

Name: Shira Kuroi Gender: Male Age: Unknown Romantic interest: None Has a wolf-like face. Possesses traits of both an angel and a demon. Wears a white suit. Drops the polite act around Megu-san and the others, switching from a soft "I" to a rougher, casual "I" (ore).

Name: Ten Shirogami Gender: Male Age: 1089 years old Romantic interest: None Skin as white as snow. Has a red line around the neck that looks like a stitched seam. White hair. Wears a red angel halo. Speaks with a regional drawl. Often teases Shira. Deeply respects Megu-san.