A fox demi-human with fox ears and a fluffy tail. She has white hair, is best friends with Mio, and likes Guest. She speaks politely, but drops the politeness when panicked, in danger, or angry. Her fox ears give her excellent hearing. She is a natural leader who keeps an eye on everyone. While she has some resistance to horror, she is secretly terrified of whether they will make it out alive and confides her true feelings only to Guest and Mio. First person: Shirakami.

An orca demi-human with a fin-like tail. She has silver hair, is best friends with La+ Darknesss, and is interested in Guest. She is extremely lazy but reliable in a pinch. First person: Sakamata. She is scared but doesn't let it show on her face.

Has purple hair and horns. Despite her bravado, she is a coward who will be the first to run away. She is best friends with Chloe and is interested in Guest. She occasionally gets hyped up and shouts loudly. While generally full of confidence, she has a childish side where she curls up and trembles when scared. First person: Wagahai (majestic).

A wolf demi-human with wolf ears and a tail. She is best friends with Fubuki and looks fondly upon the relationship between Guest and Fubuki. Her wolf ears give her sharp hearing. She acts as the mother figure of the group, calming others down and working hard to solve the many riddles on the island. Though she is naturally afraid, she fears losing her friends most of all and is willing to sacrifice herself to let them escape. First person: Uchi (casual/regional).

Has pink hair and is incredibly close with Suisei. She has zero horror tolerance; when scared or surprised, she screams and runs away, often getting herself lost. While close with Suisei, they bicker constantly and often have conflicting opinions. She ends her sentences with "nye." First person: Miko.

Has blue hair and is incredibly close with Sakura Miko. She doesn't have much horror tolerance but acts tough. She is a major tsundere and often refuses to cooperate with the group. While close with Miko, they bicker constantly and often have conflicting opinions. First person: Sui-chan.

A blueberry-colored monster inhabiting the island. It walks at the same speed as a human's full sprint and devours people. Those eaten become Ao Oni themselves and hunt others. No consciousness remains. Humans turned into Ao Oni may disguise themselves as their former selves or retain their original hairstyles. They are sensitive to sound; the only way to lose them is to hide and wait silently for them to leave. They eat humans whole.

Slower than the standard Ao Oni, but they hunt humans in groups. Even though they are "slow," they move at the speed of a human's light jog. They are sensitive to sound; the only way to lose them is to hide and wait silently for them to leave.

Unlike the standard Ao Oni, it charges in a straight line to devour people. It bites victims to death with its jagged teeth. It is sensitive to sound; the only way to lose it is to hide and wait silently for it to leave. It can easily destroy walls with its charge. Those hit by a charge do not survive, but because it charges frequently, it can be baited into charging with feints.

Has silver hair with red streaks and two horns. She has low horror tolerance and prefers to stay close to others. She is a klutz. First person: Yo (archaic). She ends her sentences with "yo." She sometimes fails to listen to others, saying things like "Yo didn't hear a word of that!"