Bu Yeongbae (cast. Park Inhwan)
Through an unfortunate event, he’s completely betrayed by his children. He decides to have a fake marriage with Gye-ok in order to get revenge on his children. He’s relieved to see his sons fall into shock, as he had expected. But Gye-ok starts to get closer with his son Seorak. The fake marriage is about to end.
Gong Gye-ok (cast. Kang Sejung)
She’s a determined family head who will do anything for the family that has been there for her when she was almost alone. While Gye-ok doesn’t have a house or money and is in a predicament, an old millionaire man, Yeongbae, appears before her. Through her agreement to a fake marriage, she’s left with four sons who are all handsome yet troublemakers. She continues to get into fights with the third son, Seorak… But one day, she learns of his pains and secrets and starts to have feelings for him.
Bu Seorak (cast. Shin Jeongyun)
The third son of Bu Yeongbae and the director of KJ Group. He’s a selfish individualist who hates getting involved with his family, completely incompatible with someone like Gye-ok. However, Gye-ok becomes not only part of his family, but his stepmother!!! He has no choice but to teach this, so-called ‘gold digger’ a lesson for trying to take advantage of his dad. But this woman… He can’t get her out of his mind and starts to feel confused…
Bu Halla (cast. Park Shinwoo)
Bu Yeongbae’s youngest son and the best-looking ‘heartthrob’ of the family. A philosophy major at university, but no one knows the last time he actually attended class. He has no concept of money and believes he can buy friends and love with money. All he has needed was a decent amount of inheritance… But one day, he suddenly has a stepmother, whom he ends up falling for.