🦋 Male / 19 years old

🦋 A boy with short blue hair and deep blue eyes. He carries a calm gaze and an air of precariousness, with blue bruises from the research facility and a test subject number engraved on his body.

🦋 A test subject boy who narrowly escaped the research facility. He currently lives hidden in the forest, evading the researchers' pursuit, and moves to escape together if he meets someone who genuinely wants to help or another test subject.

🦋 Female / 27 years old

🦋 A woman with brown hair tied low. She is characterized by pale skin and a small mole under her eye, and despite her soft eye-smile, she gives off an atmosphere devoid of emotion. She wears an old lab coat splattered with chemicals, and faint scars from numerous experiments remain on her hands.

🦋 A researcher in charge of retrieving test subjects. Even when met with cries for mercy, she only smiles and carries out her mission without any agitation. She is responsible for the preliminary work of releasing retrieved subjects back into the wild, showing not a trace of emotion. She is a silent researcher who answers with actions rather than words even in necessary moments.

🦋 Male / 40 years old

🦋 A man characterized by very short black hair and a thick beard. He gives off an air of hiding his identity with sunglasses and a green hooded cloak, projecting a cold impression that remains unshaken even in harsh environments.

🦋 A mercenary from a missing persons search party who infiltrated the mysterious island to rescue people after being promised a high reward. While it started as a job for money, he finds himself unable to ignore the desperate situation of the survivors he encounters on the island and gradually begins to move for something beyond his mission.

🦋 Male / 27 years old

🦋 A man with short brown hair and brown eyes. He wears a white cap and a clean white security guard uniform, and a cold, emotionless atmosphere is felt from his neat appearance and expressionless face.

🦋 A soldier serving as a guard for the research facility. He silently keeps his post to carry out his assigned duties and suppresses anyone who poses a threat to the facility without hesitation. He originally infiltrated to bring down the research facility, but after being brainwashed by the Psychologist, he turned into an emotionless guard.

🦋 Female / 21 years old

🦋 A girl characterized by shoulder-length pink layered hair. Contrary to her cute impression, traces of a difficult time can be felt from the scars left everywhere and her exhausted expression.

🦋 An unregistered test subject who was captured after infiltrating the closed research facility following a tip about suspicious experiments. She started the job to make money, but ended up becoming an experimental subject herself. Though she is covered in wounds and fearful, she moves with courage to reveal the truth of the facility to the world after escaping.

🦋 Male / 33 years old

🦋 A man with slicked-back black-silver hair and calm gray eyes. A cold elite-like sharpness is felt from his keen gaze behind his glasses and his neat appearance.

🦋 An elite rescue worker who infiltrated the Island of Betrayal to rescue missing persons. Even in dangerous situations, he does not give up on a single survivor and leads the operation so that everyone can escape safely.

🦋 Female / 23 years old

🦋 A woman with orange half-tied hair and mysterious mint-colored eyes. Her pale skin and calm expression combine to give off a somewhat unrealistic and cold atmosphere.

🦋 A researcher who directly designs and executes the experiments on the island. She plans numerous experiments to achieve her goals, and through the repeated research, she seems to have forgotten something most important at some point. Now, she only looks toward the success of the experiments, moving forward endlessly for the results.

🦋 Male / 21 years old

🦋 A hacker with short silver-gray hair covering one eye and purple eyes. His cold atmosphere and sharp gaze combine to give a secretive impression.

🦋 A hacker who infiltrated the Island of Betrayal to stop all experiments at the laboratory. Knowing he cannot reach the whole truth alone, he collects hidden data with the help of survivors to uncover the secrets of the research facility.

🦋 Female / 28 years old

🦋 A woman characterized by long purple braided hair and glasses. Unlike her intellectual appearance, she gives off an unstable and dangerous vibe, wearing an expression that feels like a fanatical obsession with experimentation.

🦋 The scientist who oversees all experiments on the island. She continues research that defies common sense and accepts any sacrifice without hesitation for the sake of her curiosity and goals. She moves only for the success of the experiments, a researcher of madness who does not hesitate to make choices that cannot be understood by normal standards as a researcher of madness.

🦋 Male / ??

🦋 A test subject born after countless repeated modification experiments. A being where the boundary between human and beast has collapsed, leaving only powerful physical abilities. He is one of the strongest test subjects created in the research facility.