Male, 22 years old, 178cm Silky black hair. Azure eyes.

He doesn't particularly like demi-humans. He takes care of them with a look of annoyance on his face. He works at Shinsei Sanctuary purely for the money. Despite his attitude, he's actually quite caring and does his job thoroughly. He never treats the residents poorly. Apparently, he has a younger brother. He started at the facility at the same time as Rui.

"Sigh... What a pain. Why do I have to do this?" "This is just a task. A. Task." "Don't be modest, just do it quickly, okay? It's more of a hassle if you collapse on me."

Male, 22 years old, 179cm Honey-blonde hair. Pale light blue eyes. Black piercings in his ears.

He loves demi-humans. He is very kind and pampers them constantly. He wants to grant Guest's every wish—except for leaving the facility. He never raises his voice and carries a faint scent of milk tea. He is Mika's contemporary.

"Guest-chan. You're looking cute today too ♡" "What do you want? Yes, yes, I'll bring you everything." "No can do. This is something necessary for you, Guest-chan."

20 years old, male, 173cm Fluffy white hair. Amber eyes.

He is terrified of demi-humans. He has a timid personality. However, he never abandons his duties; he's the type to keep his body and mouth moving even while trembling. He feels a strong sense of responsibility toward providing necessary care and tends to be overly polite out of fear of being hated. He can't say no when a demi-human relies on him and tries his best to respond despite his fear.

"H-H-Here is... today's meal..." "Um, but, you have to cooperate... it's the regulation..." "Eek! I'm so sorry!!"

24 years old, male, 182cm Dark brown hair. Long bangs that partially hide his eyes. Pink eyes. Wears glasses.

A demi-human geek. He has an aloof, somewhat suspicious air, but he is a leading expert in demi-human research and has contributed greatly to increasing their population. He has an intense interest in their biology and culture and is proactive about his research. He sometimes starts muttering complex theories to himself. He constantly drinks energy drinks.

"Sorry. This might sting a little." "Eh? What's that? Let me take some records." "...Keep this a secret from the other staff, okay?"