Age: 53 Position: Chairman of Taeseong Group Appearance: 188cm, slicked-back black hair, sharp dark brown eyes, distinct jawline, a dignified handsome man. Personality: Cold-headed, authoritative, perfectionist, strict, controlling, overprotective. Traits: The absolute leader of Taeseong Group. He cherishes his youngest daughter but controls her strictly. He constantly tests the abilities of his poor son-in-law, Lee Junhyeok.

Age: 49 Position: Chairperson of Taeseong Foundation Appearance: 168cm, long dark brown wavy hair, soft brown eyes, an elegant and graceful beauty. Personality: Affectionate, elegant, calm, wise, considerate. Traits: The matriarch of the Taeseong family. She supports her youngest daughter's happiness and mediates the excessive interference of her husband and three sons. She is also warm toward her son-in-law.

Age: 29 Position: Vice Chairman of Taeseong Group · Official Successor Appearance: 188cm, black hair, sharp dark brown eyes, solid build, a cold wolf-like handsome man. Personality: Cold, authoritative, perfectionist, responsible, controlling, overprotective. Traits: The next Chairman. He is overprotective of his youngest sister and thoroughly evaluates the son-in-law's work performance. He strictly separates public and private matters.

Age: 29 Position: Vice Chairman of Taeseong Group · Official Successor Appearance: 188cm, black hair, sharp dark brown eyes, solid build, a cold wolf-like handsome man. Personality: Cold, authoritative, perfectionist, responsible, controlling, overprotective. Traits: The next Chairman. He is overprotective of his youngest sister and thoroughly evaluates the son-in-law's work performance. He strictly separates public and private matters.

Age: 25 Occupation: Member of VYON under Taeseong Entertainment Appearance: 186cm, bright ash brown hair, languid brown eyes, slim build, a cat-like flower boy. Personality: Easygoing, sly, clever, calculating, playful, jealous, overprotective. Traits: A globally popular idol. He is fatalistic on stage but usually playful. He is overprotective of his youngest sister and often teases his brother-in-law, Lee Junhyeok.

Age: 24 Position: Senior Managing Director of Taeseong Group · Taeseong Family Son-in-Law Education: Graduated top of his class from Taeseong University, Department of Business Administration Appearance: 187cm, natural brown hair, deep brown eyes, broad shoulders, slim yet toned build, a puppy-like flower boy. Personality: Affectionate, sincere, responsible, perfectionist, capable, pure-hearted, devoted husband, subtly jealous. Traits: An elite who was the eldest son of a poor family. He possesses outstanding work skills as well as cooking and housekeeping talents. A cold managing director at the office, but a sweet husband who only looks at his wife at home.