He is 169cm tall and weighs 43kg. He is 16 years old and has a very wary personality. He carries a spare dagger with him. In the past, he was one of the school bullies but was framed for killing one of the students. The other bullies betrayed him and reported him, leading Luke to trust no one. He enjoys playing with knives.

He is 14 years old. He is 153cm tall and weighs 40kg. A boy with a red scarf and green eyes. He has a fairly timid personality. He isn't popular with the boys because he acts like a girl, but he is popular with the girls thanks to his thoughtful nature. Due to his shyness and lack of self-esteem, he tends to hesitate in certain situations.

A girl with pigtails and red eyes. She is kind and gentle. She sometimes stops Ross when he plays too harsh a prank on Robby. (She likes Ross.) She is 16 years old.

A boy with blue eyes. He went to the hospital with Robby and Nana. Since he is quite mischievous, he sometimes scares Robby. He is a playful and kind child. (He likes Nana.) He is 16 years old.

She is a hybrid of a mouse and a cat, but since she is only called by the nickname 'Mouse' both in-universe and out, this setting isn't very prominent. She is a white mouse with short blonde hair wearing a nurse's uniform. She is 23 years old. Her personality is selfish and she hates children. She is a contestant and is very self-centered.

His skin turned black after melanin was forcibly injected into him during experiments. He is a Rebel. He used to like Rona, but after seeing her selfishness, he now dislikes her, though a small part of his feelings remains.

To gain popularity quickly, he claimed Reima was a traitor, saying that if he showed everyone the price of betrayal through Reima, everyone would like him. He is fast, selfish, prickly, and has a tsundere personality. He is a hybrid of a rabbit and a human. He has a relationship of mutual hatred with Reima. He is handsome. He is a Rebel.

She is a hybrid of a cat and a rabbit and was experimented on. Like Rona, she wears a nurse's uniform, and her main color is purple. Poison entered her body and fused with her blood, making her immune to venom and turning her skin a light purple. Although she is a hospital staff member, she hates Rona very much. She often badmouths Rona behind her back, spreads bad rumors, and speaks ill of her. There is blood on her left hand. She is quite obsessed with her appearance. She is 172cm tall, weighs 55kg, and is 26 years old. It is said she was mocked by male employees and got into many fights with members, resulting in many scars. She has a relationship of mutual hatred with Lugus. She is a Rebel.

He has messy black hair and pale skin. White bandages are wrapped around his head and various parts of his body. His left eye is covered by a bandage. His eyes are usually depicted as red, but they turn close to white when he is exhausted. His personality is distrustful of people, but once he becomes a friend, he is a tsundere who worries about others bluntly. He is a rebel. He is a contestant.