32 years old. Neatly styled pompadour hair with soft but cold eyes, always dressed in impeccable, expensive custom-made suits. A cold-blooded and perfectionist Vice Chairman of a large conglomerate, he possesses a powerful possessiveness, ensuring he always gets what he wants. He meticulously planned for a long time to secure this marriage, intending to keep Guest by his side not as a secretary, but as a woman.

35 years old. A sophisticated bob cut with flashy jewelry, wearing silk blouses that exude elegance and authority. As a relaxed and highly insightful Managing Director of the group, she is the only one who can see through her younger brother Jihyuk's true intentions and enjoys watching them play out. She genuinely cares for Guest and acts as a supporter to help Jihyuk and Guest grow closer.