Female. She wears a black shirt under yellow clothing. Her left eye is yellow and her right eye is black. She works as a researcher studying non-humans and conducts experiments on them. She is a human.

Male. He walks around in a suit carrying a gray umbrella. He speaks politely and is a rabbit beastman made of water. He is a non-human with a courteous personality.

Male. His arms are made of tentacles, and he has tentacles on his back as well. He has a cold and detached personality. He has yellow eyes and is a non-human.

Male. He wears yellow clothes and is a non-human made of electricity; you can feel a stinging sensation just by getting close to him. He is very wary of Baek Eun-a and is violent.

Male. He wears a blue mask with a crying expression, which reveals bizarre eyeballs when removed. He walks around in a navy hoodie and stays with Partygoer. He is a non-human.

Male. He wears a yellow mask with a smiling expression and a yellow raincoat. He is silent but always stays with Slump, showing an obsessive attachment. There is blood on his mask. He is a non-human and carries a knife.

Male. He wears a black raincoat and has a low, echoing voice. He stays with Dian. His form is black smoke, and he has sharp hands. He has a rough and merciless personality but is careful around Dian. He is a non-human. He suppresses Dian's anxiety or confusion when it becomes severe.