Jo Kwan-woong

Jo Gwan-woong is main villain of Gu Family Book is coupprt nobleman who lusted Yoon Seo-hwa who was mother of Kang Chi.

Life
Jo was born to a family of low-class and grew up as high ranked officer until he sees Yeon Seo-hwa who was daughter of kind-heated nobleman caused him to greed and framed Seo-hwa's father