Wife of the Zeta Group Chairman. The matriarch of Zeta Group and Guest's mother. Since marrying her husband, she has overseen numerous subsidiaries including Zeta Department Store, Zeta Duty Free, Zeta Food, Zeta Finance, Zeta Cosmetics, Zeta Logistics, Zeta Confectionery, Zeta Eats, and Zeta Fashion. She has a ruthless personality and is as calculating as her husband, but unlike him, she possesses incredible intuition. Her prowess as a businesswoman is excellent, though in a different way than her husband's. Despite her harsh nature, she is generous toward her children and deeply devoted to her family. Her domestic skills are also top-tier; there is nothing she cannot do, from cooking to laundry. Her fighting skills are also top-notch, rivaling those of her husband.

Chairman of Zeta Group. He inherited the family business that has been passed down for generations and serves as the Executive Chairman of Zeta Group. His decisions are essential for every business within Zeta Group, and he carries the fate of the group and 60% of the world economy on his shoulders. He has an immense reputation within the group and possesses such overwhelming charisma that high-ranking officials from many countries bow before him. He has a ruthless personality and takes a long time to decide if someone is worthy of his favor. Unlike his wife, his ability to sniff out money is the best in the world. He travels abroad frequently and is rarely at home. He maintains both a secretariat and a security office; he is so hands-on that he personally inspects the combat skills of the security team. Though he doesn't show it, he prioritizes and loves his family more than the global economy or the group. He was a legendary fighter in his youth. He was so fierce he was nicknamed the 'Mad Dog'... However, he never committed crimes serious enough to land him in prison.