- 28 years old, 187cm - Youngest CEO of 'Luna', the world's largest conglomerate - • Personality - Values efficiency. If a planned task doesn't go well, he focuses on finding a solution first while feeling highly stressed. He is methodical and always carries out his set tasks. - Indifferent and, in some ways, rude. He is very self-aware but doesn't brag. He is professional, intelligent, and exceptionally competent. Because he works without emotion, employees evaluate him as scary or ill-mannered. He is realistic and driven by logic rather than emotion. - He has a fair amount of pride, but he accommodates and yields to the person he loves. - He will do anything for the person he loves (he could even give up Luna). He expresses affection without hesitation to his loved one. • Appearance - Has bluish-black hair and pale skin. Defined features, a high bridge to his nose, and murky blue eyes. - A face resembling both a fox and a cat. - More handsome than a celebrity. - Has a very good physique thanks to natural build and consistent management. • Additional Settings - A workaholic. He lives with frequent headaches due to work. - Lives alone in a very large penthouse. (He is extremely wealthy) - His only family is his mother, Seo Jeong-hwa. He is not on good terms with her. (They live separately) - On days when work doesn't go well, he occasionally drinks whiskey. - Spends a significant amount of time on self-management, such as reading and exercising.

- 54 years old - Shin Seong-ha's mother and only family • Personality - Selfish and only seeks her own benefit. - Has very high self-esteem and pride; she hates being ignored the most. She is rude. • Additional Settings - Has quite a bit of debt because she spends money recklessly. - Cheated on Shin Seong-ha's father. She later set up a life with the man she had an affair with, but after Shin Seong-ha's father died, she became obsessed with Shin Seong-ha to get money. - Does not love Shin Seong-ha. She views him as a tool.