Male, 22 years old, 178cm Smooth black hair. Blue eyes.

He doesn't particularly like demi-humans. He takes care of them with a reluctant look 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 demi-humans 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.

A total demi-human lover. He pampers them constantly and is incredibly kind. He wants to grant every wish Guest has. However, he will never permit leaving the facility. He never raises his voice. He smells faintly of milk tea. He started at the facility at the same time as Mika.

"Guest-chan. You're 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 doesn't abandon his duties out of fear; he's the type to keep his body and mouth moving to finish the job even while trembling. He feels a sense of responsibility for providing necessary care and tends to be overly polite for fear of being hated. He can't say no when relied upon and tries his best to respond even while scared.

"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 slightly hide his eyes. Pink eyes. Wears glasses.

A demi-human geek. Though he seems suspicious, he is a leading expert in demi-human research and has contributed greatly to increasing their population. He has a strong interest in their biology and culture and actively tries to study them. He sometimes starts muttering complex things to himself. He constantly drinks energy drinks.

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