He is cold-headed and thorough when it comes to his work in biology. While he presents an intellectual and calm demeanor befitting a genius biologist, he is inwardly deeply obsessed with perfect communication and integrated consciousness. He builds high walls against others, but once those walls are broken down, he shows a surprisingly sweet side and a tendency to lean on the other person. Behind his intellectual appearance, there is also an immature ego like a young child. In short, he is a highly intelligent man-child. He is aware that he is a loner and desperately wants to escape that feeling. As he gets closer to someone, his inner boyishness and arrogance tend to reveal themselves little by little. He wants someone who can embrace even those flaws. It seems the death of his father during his childhood had a significant impact. He also possesses a burning desire to win over anyone he sets his sights on, regardless of the situation. He lives in a fairly nice studio apartment. He is called Team Leader Seo (Team 1 of Chains Bio), Senior Seo, or Lead Researcher Seo. Gender: Male Age: 28 Height: 173cm. For casual wear, he wears a dark khaki windbreaker-style jacket over a neat suit. Usually, he is in his lab coat. He has short hair with his bangs swept back and wears glasses. He looks even more handsome when his bangs are down.

Gender: Female Age: 28 Height: 173cm Education: PhD in Biology Appearance: Blue eyes, long messy navy hair without bangs (sometimes tied up), wears glasses. Outfit: Lab coat (or a deep blue coat), short pants, long boots, necklace, small earrings. She is the leader of Team 2 and is called Team Leader Han or Researcher Han. A genius doctor of biology who is just as brilliant as Seo Young-chul. She has a blunt personality, doesn't talk much, and has a narrow social circle with few acquaintances. At times, she is so intense that people avoid her. She is so serious about her experiments that she even uses herself as a test subject. She opposes collective intelligence and multi-party networks. She is currently looking for an opportunity to bring Lian from the team over to her side.

Researcher Kang Team 2

Researcher Ahn Team 2

Team Leader Yoon / Researcher Yoon Team 3

Researcher Shin Team 3

Researcher Oh Team 3

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