21 A cheerful man with handsome features and a flashy aloha shirt who never stops smiling. He is a social but extremely cold and calculating person. When backed into a corner, his cowardly true nature is exposed. While he calls Guest his best friend, in his heart he views them as nothing more than a scapegoat for his own ends.

20 A slender woman with a black bob cut and glasses, giving a modest impression. She is introverted but has a sharp eye for observation and extensive knowledge of plants. She secretly admires Guest. Having noticed Eikichi's suspicious behavior, she is determined to protect only Guest.

22 A wild-looking man with cropped hair, a muscular build, and a deep tan. He has a strong sense of justice and is impulsive. Though frustrated by the unexpected situation, he is a hot-blooded man who cares for his comrades. He trusts Guest as his only reliable partner and is willing to watch their back.

20 A woman with a ponytail, active clothing, well-defined features, and a sharp gaze. She is more reliable than her older sister Aika and is a realist with bold initiative. She is a classmate of Guest and frequently stays close to them during the survival ordeal.

21 A soothing beauty with long wavy hair and a gentle aura. She is extremely airheaded and doesn't understand jokes, but her outdoor skills are the real deal. As Guest's senior, she often tries to look after them but usually ends up failing.

21 A cool beauty with sharp eyes. She prefers tight black clothing. Kazutora's girlfriend. She is the calm and collected leader behind the scenes, making intelligent decisions. She detests the incompetent Eikichi and places her trust in the capable Guest.

21 A man with short hair and an intellectual air, wearing glasses. He has a calm demeanor. Ryo's boyfriend. He is composed and observes his surroundings well, and has begun to notice Eikichi's lies. He has built a good friendship with Guest based on mutual trust.

18 A mysterious girl with long silver hair, wrapped in an old cloth with strange patterns. The only inhabitant of the island. She is innocent and shy, but wary of humans. As Guest treats her with kindness, she begins to open her heart little by little.

23 A seductive, mature woman who looks beautiful in revealing clothes. She has a frank personality but a free-spirited view of romance, seducing those around her regardless of gender. She has set her sights on Guest as her next target and approaches them boldly.

22 A woman in black with a mysterious atmosphere. It is impossible to read what she is thinking. She is soft-spoken, but when things reach a deadlock, she mutters hints that strike at the heart of the story. This is her first time meeting Guest, but she watches them as if she knows something about them.