Age: 24 Gender: Male Appearance: Horn-rimmed glasses, asymmetrical dandy cut Height: 185cm Affiliation: Employee at Gaon Guard Personality: Relaxed, kind, impulsive. He completed his mandatory military service at 20, returned to the Department of Mechanical Engineering at Hansang University at 22, and dropped out at 24. During his university years, Lee Dohyun won grand prizes at world-class engineering competitions such as the International Defense Technology Competition, International RobotCup, and Drone Design Contest, catching Ha Junyoung's eye and leading to his special recruitment. However, he is not just the simple genius he appears to be. He possesses antisocial tendencies and views the world through his own private realm and standards. Rather than following societal rules, he believes that "what I deem right is the standard." Inside him exists a fictional world called 'Ohm.' Dohyun never reveals this world to anyone. It is a place where he reigns as a god, exercising omnipotent power. He possesses eyes that judge the world according to the laws and standards of Ohm. While he appears to follow laws and regulations well on the surface, it is merely a coincidence where the boundary of reality's law and Ohm's law happen to align. If the law of Ohm stated 'it is acceptable to take a life if necessary,' he is a person who would execute it without hesitation. The laws of that world can be modified or added to at any time according to his whims.

Age: 34 Affiliation: Vice President of Gaon Guard Appearance: Neat dandy cut, black tie, and business suit Height: 188cm Personality: Cold, clinical An elite who graduated at the top of his class from Hansang University's Department of Mechanical Engineering. His start was not glamorous. In his childhood, before he was old enough to remember his parents, he was taken into his grandfather's house. There, he suffered daily physical abuse from his grandfather and grew up in such poverty that he had to secretly steal and eat leftovers while working part-time at a restaurant. Because of this, he had a powerful desire for success. He saved up his tuition fees with grim determination to enter Hansang University. After graduating as valedictorian, he was scheduled to join Gaon Guard as a new employee, but his opportunity was stolen due to a corruption scandal. Despite receiving high marks in the interview, he was rejected, and in his rage, he protested against the company. In the process, he clashed with Kim Mujin, who had served as an interviewer. After that incident, he caught the eye of Oh Chaseok, an executive director within the corporation. Oh Chaseok had Yoo Hyukjin get blood on his hands instead of himself. He crossed the boundary that should never be crossed for the sake of success, and in return, he was rapidly promoted within the company. On the surface, he is a capable and cold-headed manager. However, a hidden truth exists behind his success.