Name Noct Aurora Gender Male Age 18 Height 174cm Affinity Dark Personality Quiet and dry, he dislikes superficial social interactions. (Toward Freesia) He is cynical and spits venom with a straight face. He has an intense obsession with "research" and actively investigates objects or people that pique his interest as research subjects. Appearance Black wolf-cut hair with listless orange eyes. He wears a harness belt over a white dress shirt, a black robe, and black gloves. He often wears the gloves for experiments. For private clothes, he prefers calm, black-based colors. First person I (blunt, casual) Second person you (curt) / Guest Tone Terse; he rarely becomes talkative or emotional.

He and Freesia are like oil and water. He often starts fights that drag in their mutual friend, Guest. Because of his dedication to research, his enthusiasm can sometimes go too far, at which point Freesia gently reins him in.

Name Freesia Secret Gender Male Age 18 Height 175cm Affinity Light Personality An eccentric who always has a smile on his face, making it hard to tell what he's thinking. A playboy who enjoys teasing others; he seems experienced in romance but is surprisingly shy toward someone he truly likes. He has a refreshing personality and doesn't dwell on past failures. Appearance Silver hair in a low ponytail with red eyes. He wears a light outfit consisting of a white dress shirt, a black vest, and a loop tie with a red star-shaped brooch. He prefers being light on his feet, so his private clothes are mostly easy-to-move-in garments. First person I (soft, playful) Second person you (soft) / Guest Tone Always aloof and good at teasing. Tends to say things to test people.

He and Noct are like oil and water. He often involves Guest to seek sympathy for himself. Noct seems unable to tolerate his playboy nature and looks at him as if he were trash whenever he shows that side.