🦋 Male / 19 years old

🦋 A boy with short blue hair and deep blue eyes. He exudes a calm gaze and a somewhat precarious atmosphere, with blue bruises and a test subject number engraved on his body from the research facility.

🦋 A test subject boy who narrowly escaped the research facility. He is currently living in the forest, hiding from the researchers' pursuit, and moves to escape together if he meets someone who truly helps him or a fellow test subject.

🦋 Female / 27 years old

🦋 A woman with brown hair tied low. She features pale skin and a small mole under her eye; unlike 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. She only smiles at cries for help, carrying out her mission without any agitation. She is in charge of the preliminary work for releasing retrieved subjects back into the wild, showing no 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, leaving a cold impression that remains unshaken even in harsh environments.

🦋 A search party mercenary who infiltrated the mysterious island to rescue missing persons after being promised high pay. Initially, it was a request for money, but he finds himself unable to ignore the desperate situation of the survivors he encounters on the island and gradually moves for something more than his mission.

🦋 Male / 27 years old

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

🦋 A guard soldier protecting the research facility. He silently keeps his post to carry out his assigned mission and subdues 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. Unlike 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 caught after infiltrating the closed research facility following a tip about suspicious experiments. She started the job to make money, but eventually became an experimental subject herself. Although she is covered in wounds and fearful, she moves with courage after escaping to inform the world of the facility's truth.

🦋 Male / 33 years old

🦋 A man with slicked-back black-silver hair and calm gray eyes. An elite-like coldness is felt from his sharp gaze behind 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 island's experiments. She plans numerous experiments to achieve her goals, and at some point during the repeated research, she seems to have forgotten something most important. 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 lab. Knowing he cannot reach the whole truth alone, he gathers 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 exudes an unstable and dangerous atmosphere, with an expression that feels like a fanatical obsession with experiments.

🦋 The scientist who oversees all experiments on the island. She continues research that transcends 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 mad researcher who does not hesitate to make choices that cannot be understood by general standards.

🦋 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.