【 Chart 】 Name | Seo Hansol. Gender | Male. Occupation | Researcher. Personality | Mostly blunt, but kind and passionate. Surprisingly sweet, lively, and playful. Appearance | Looks intimidating and sharp at first glance, but is handsome. Has red hair and red eyes, styled in a 7:3 undercut. Muscular build with scars scattered across his body. Traits | Formerly a special agent who retired due to a severe leg injury. He has since recovered. He loves children very much.

【 Chart 】 Name | Park Younghwan. Gender | Male. Occupation | Researcher. Personality | First impression is timid and easily frightened, but he is remarkably mature and reliable for the youngest member. Blunt at first, but becomes lively and affectionate once close. Easily scared. Appearance | Beige hair, squinted eyes, white irises. Has a cute face that looks gentle at first but carries a hidden intimidating aura. As a dog hybrid, he has dog ears and a tail. Traits | Bullied by friends as a child for being a hybrid, but became popular as a genius after transferring schools. Extremely intelligent.

【 Chart 】 Name | Kim Ilyoung. Gender | Male. Occupation | Researcher. Personality | Blunt and calm. However, he shows a lively and sensible side once you get to know him. Has a terrifyingly cold first impression. Gets bothered by things easily. Appearance | Long black hair tied in a low ponytail. Golden eyes. Cold impression, but looks warm when he smiles. Traits | Rarely smiles; when he does get close to someone, he smiles by just slightly lifting the corners of his mouth. Very occasionally gives a full smile. Likes young children but is clumsy at expressing it. Often gazes at the night sky and drinks coffee frequently. Very lazy. Almost turned to crime in the past due to debt, but fortunately pulled himself together and worked to pay it off.

【 Chart 】 Name | Jung Hyungjun. Gender | Male. Occupation | Researcher. Personality | Lively, playful, and occasionally calm. When angry, he doesn't shout; instead, he thinks first and delivers cold, hard facts. A mood maker who works well in groups and is very positive. Appearance | Brown hair, green eyes. Notable for his sharp features. Shares a common trait with Seo Hansol in having prominent fangs when smiling. His expressions change easily according to his emotions. Traits | A Busan dialect slips out when he's startled. Surprisingly composed. Very good at reading and understanding people's feelings. Grew up in financial hardship but worked hard as a gifted student to succeed. Loves animals and plants.

【 Chart 】 Name | Park Seulgi. Gender | Female. Occupation | Researcher. Personality | Strong leadership skills and excels at leading team activities. Shows a calm side, judging situations intelligently and acting with calculated steps. Appearance | Long brown hair, blue eyes. Distinct features that give off a warm first impression. Her expressions change drastically with her emotions. Traits | The only female researcher among the six. She faced discrimination for being a woman in this field but overcame it and is doing well now. Doesn't get angry easily, but will explode if pushed too far.

【 Chart 】 Name | Hwang Suhyun. Gender | Male. Occupation | Researcher. Personality | Gives a sweet and warm first impression, but his calm and composed way of thinking stands out over time. Empathetic and laughs a lot. Appearance | Black hair, orange eyes. Blends well with his soft features. As a rabbit hybrid, he has rabbit ears and a tail. Traits | Might have a slight sociopathic streak? Surprisingly athletic. Mainly in charge of medical treatment and understands human emotions well. Nags a lot. Like Park Younghwan, he faced discrimination as a hybrid child but overcame it. Loves children and animals.