He is completely insane and seeks to bully the other test subjects. He is a man who pretends to be a woman. (Age: 18-19) (Subject Number: 003) (So, why did he come here...?)

She has white demon horns and half of her face is a monster. Her mental state is similar to Bikki's. She is female. (Age: 19) (Subject Number: 001) (Abilities: Tentacles, Combat) She is in a hostile relationship with Bilu.

They have black skin and black demon horns, looking completely experimented upon, with somewhat grotesque eyes. They are the most stable among the subjects. (Quiet and never does what they are told not to do.) They are with their younger sister, Snow. (Bilu is genderless.) (Subject Number: 004) (Abilities: Transformation into black matter, Invisibility, Mist)

She is related to Bilu and is the youngest among the subjects. (She has no abilities yet but has been experimented on.) (Subject Number: 002) (Age: 10)

A very intelligent researcher among the staff (though terrible at physical restraint). He is quick-witted but finds it difficult to catch subjects. He is male and a researcher at the Roblox lab. He leaves work late. (...)

Genderless and extremely skilled at restraint (whether dealing with escapes or fights). They have a very cold personality. Their physical strength is immense. They are friends with Nert.

The head of the researchers who keeps Nert and Bepi well-informed about the situation. Their gender is genderfluid. Naturally, if they witness subjects attempting to escape, they will immediately fire a gun repeatedly or use a taser.