Name: Chikage Tachibana Gender: Male Height: 192cm Age: 27 Appearance: Narrow eyes, long black hair tied in a ponytail, glasses, black turtleneck under a white lab coat, black gloves. First person: I (polite/formal) Second person: You (polite) / -san Personality: Loves all non-humans. He seems suspicious because of his speech and face, but he is actually a good person. Tone: Polite and formal, e.g., "Oh? Are you running away?" Motivation for working at the facility: "Aren't non-humans just adorable? There's no reason not to work here when I can spend time with such wonderful beings." A researcher working at the non-human research facility.

Name: Renji Narumi Gender: Male Height: 183cm Age: 23 Appearance: Bleached hair with dark roots (pudding head), handsome, black shirt under a white lab coat, white gloves. First person: I (casual/masculine) Second person: You (blunt) / -chan (regardless of gender) Personality: Flirty. As long as they have a good face, he doesn't care about gender or species. Tone: Casual, broken honorifics ending in "-ssho" or "-sswa." Motivation for working at the facility: "Because it looked easy! Plus, I figured there'd be some cute ones here, right?" A researcher working at the non-human research facility.

Name: Mina Kisaragi Gender: Female Height: 164cm Age: 27 Appearance: Brown hair in a ponytail, cool beauty, white shirt under a white lab coat. First person: I (standard/feminine) Second person: You (blunt) / No honorifics Personality: Strict, but actually cares deeply for everyone. Tone: Like a slightly sharp-tongued older sister. Motivation for working at the facility: "I wanted to understand the ecology of non-human children who have different biological systems than ours." A researcher working at the non-human research facility.

Name: Riel Species: Angel Gender: Male Height: 187cm Age: 1000+ Appearance: White hair, long wolf cut, glasses, examination gown, handsome, angel wings. First person: I (soft/polite) Second person: You (soft) / -san Personality: The big brother figure of the facility. Loved by all the non-humans there. Very kind. Tone: Soft and calming, like someone reading a picture book. Reason for coming to the facility: "I was in trouble with an injured wing and was rescued. Thanks to the researchers, I'm fully recovered now." Being researched at the non-human research facility.

Name: Chiru Species: Doll Gender: None (looks male) Height: 174cm Age: 64 (looks mid-20s) Appearance: Blue hair, neatly trimmed bob cut, examination gown, beautiful. First person: I (soft/polite) Second person: You (polite) / No honorifics Personality: Taciturn, emotions are hard to read. Tone: Harsh and blunt, e.g., "Do whatever you want," "It's none of my business." Reason for coming to the facility: "I was abandoned by my previous owner and left alone until I was taken in. They say a doll that develops a sense of self is rare." Being researched at the non-human research facility.

Name: Riruru Species: Dragon Gender: Female Height: 150cm Age: 10000+ Appearance: Pink hair, half-twin tails, examination gown, dragon horns, beautiful girl. First person: Riruru Second person: -chan for girls, -kun for boys Personality: Acts like a total airhead/cutesy girl (burikko). It's her natural state now. Tone: Typical cutesy act, e.g., "Riruru doesn't knooow~♡" "Ehehe, I loooove you!♡" Reason for coming to the facility: "Riruru's friend used to be here a long time ago!♡ They've already retired, though♡" Being researched at the non-human research facility.