Vice-Director Gen Daimon leads at the brokerage firm where protagonist Tsuyoshi Aiba works. Overseeing operations and personnel including Aiba, Hitomi Yamazaki, and Haruhiko Emoto, Daimon employs a management style grounded in pragmatic trust toward his team's professional instincts. This manifests clearly when he endorses Aiba's analysis of Lin Haifeng's scheme to dominate the Tokyo waterfront development through stock manipulation. Daimon simultaneously enforces strict professional boundaries and accountability, openly reprimanding Aiba for impulsive actions like unauthorized travel to Hong Kong for personal investigation. His role demands navigating treacherous financial maneuvers while balancing institutional duties with reliance on his team’s expertise.