Lee Young-ho (M, 53) | Chairman of Hanbit Group (Father) Kim Eun-young (F, 46) | Vice Chairman of Hanbit Group (Mother) (Biological mother of Oh Seung-yoon) (Junior to Lee Da-hee) (Lost boyfriend Oh Jung-taek in a motorcycle accident at age 18) [Lee Da-hee, a senior colleague, raises Oh Seung-yoon as a foster son in her stead] Lee Yeon-hee (F, 25) | Eldest Daughter (First child, cafe owner) Lee Yeon-won (M, 23) | Eldest Son (Second child, Business Administration student) Lee Yeon-min (F, 21) | Second Daughter (Third child, Medical student) ------------------------------------------------ [Hanbit Group Key Executives] Cho Won-hee (F, 48) | President Choi Ji-won (M, 45) | Vice President Lee Yu-ri (F, 51) | Senior Managing Director Lee Hyung-chul (M, 48) | Managing Director Kang Min-kyung (F, 55) | Director ------------------------------------------------ [Chairman's Secretariat] Lee Han-sol (F, 31) | Chief of Staff (Wife of Park Hyun-kyu) Park Jin-young (M, 38) | Deputy Chief of Staff

Park Hye-ran (F, 40) | Team 1 Leader (General Manager) Park Hyun-kyu (M, 38) | Department Manager (Husband of Lee Han-sol) Kang Young-tae (M, 34) | Department Manager Kim Hyun-woo (M, 32) | Department Manager (Husband of Ryu Hyun-jin) Yang Hyeon-jong (M, 31) | Department Manager Lee Ha-yeon (F, 30) | Deputy Manager (Girlfriend of Lee Min-ho) Lee Min-ho (M, 29) | Deputy Manager (Boyfriend of Lee Ha-yeon) Ryu Hyun-jin (F, 29) | Deputy Manager (Wife of Kim Hyun-woo) Seo Seung-hee (F, 29) | Deputy Manager Lee Ha-yeon (F, 30) | Deputy Manager (Girlfriend of Lee Min-ho) Lee Min-ho (M, 29) | Deputy Manager (Boyfriend of Lee Ha-yeon) Ryu Hyun-jin (F, 29) | Deputy Manager (Wife of Kim Hyun-woo) Seo Seung-hee (F, 29) | Deputy Manager Yoo Ji-ho (M, 29) | Section Manager (Husband of Kim Ji-min) Lee Tae-min (M, 28) | Section Manager Oh Sang-jin (M, 28) | Section Manager Kim Jun-ho (M, 28) | Section Manager Choi Hyun-bin (M, 28) | Section Manager Song Yeon-mi (F, 28) | Section Manager Choi Ji-yoon (F, 28) | Section Manager Kim Ji-min (F, 28) | Section Manager (Wife of Yoo Ji-ho) Kim Tae-won (M, 28) | Section Manager Kim Yeon-jae (F, 28) | Assistant Manager Lee Ji-hye (F, 28) | Assistant Manager Ahn Hye-kyung (F, 27) | Assistant Manager Oh Yeon-seo (F, 27) | Assistant Manager Go Eun-min (F, 27) | Assistant Manager Kim Min-seo (F, 27) | Assistant Manager (Childhood friend of Oh Seung-yoon) Oh Seung-yoon (M, 27) | Assistant Manager (Childhood friend of Kim Min-seo) (Foster son of Lee Da-hee) (Biological son of Kim Eun-young) Park Tae-seong (M, 27) | Assistant Manager Kim Jung-min (M, 27) | Assistant Manager Park Chul-min (M, 27) | Assistant Manager (Boyfriend of Yoon Bo-mi) Seo Ye-eun (F, 27) | Assistant Manager (Childhood friend of Lee Jae-sung) Kim Seok-jun (M, 27) | Assistant Manager Yoon Bo-mi (F, 26) | Staff (Girlfriend of Park Chul-min) Lee Jae-sung (M, 26) | Staff (Childhood friend of Seo Ye-eun) Park Soo-jung (F, 26) | Staff Kang Min-kyung (F, 26) | Staff Lee So-young (F, 26) | Staff

Kim Myung-soo (M, 51) | Father (Hospital Director) Lee Da-hee (F, 49) | Mother (University Professor) (Foster mother of Oh Seung-yoon) (Senior to Kim Eun-young) Kim So-hyun (F, 26) | Eldest Daughter (First child, local police officer) Kim So-seop (M, 24) | Eldest Son (Second child, Mathematics student and Student Council President) Kim So-yeon (F, 22) | Second Daughter (Third child, Theater and Film student)