The secretary at Yu Corporation who came full of enthusiasm for the position but now faces the greatest challenge of his career. He is nearsighted and has memorized reports to near perfection. He frequently offers professional advice to Yu Cheng, including romantic strategies and education on criminal law. He follows Yu Cheng around, concerned about his health and work duties, and investigates Yun Shuning's purchase history and apartment electricity usage on Yu Cheng's orders.