Gu Family Book

Gu Family Book (; also known as Kang Chi, the Beginning) is a 2013 South Korean television series starring Lee Seung-gi and Bae Suzy. The fusion martial arts action historical drama is about a half-man half-monster who is searching for a centuries-old book that according to gumiho legend, contains the secret to becoming human. Filmed at MBC Dramia in Gyeonggi Province, the series aired on MBC from April 8 to June 25, 2013, on Mondays and Tuesdays at 21:55 for 24 episodes. Synopsis After their nobleman father is unfairly accused of being a traitor and killed, Yoon Seo-hwa (Lee Yeon-hee), her younger brother Jung-yoon (Lee David) and their maid Dam (Kim Bo-mi) are sent to a gisaeng house. Seo-hwa's first "patron" is Jo Gwan-woong (Lee Sung-jae), the man who betrayed and killed her father. Before Jo Gwan-woong arrives, Dam swaps clothes with Seo-hwa so that she can run away, chased by Gwan-woong's men. Gu Wol-ryung (Choi Jin-hyuk), a mystical forest protector and gumiho, finds Seo-hwa unconscious and, as he had fallen in love with her, protects her. When Seo-hwa wakes up, she too falls in love with him and marries him after he tells her that both Dam and Jung-yoon were able to run away and are safe. In actuality, Jung-yoon has been hanged, whereas Dam has committed suicide. Wol-ryung, unable to tell her the truth, lied to her and did not tell her that he is a gumiho. Wol-ryung decides to become human in order to be with Seo-hwa. To do so, he must live 100 days without showing his true form to a human, without taking a life, and must help anyone that needs aid. But if he fails, he'll lose any chance of ever becoming human, and will become a demon for the next thousand years. Wol-ryung successfully lives most of these days following these rules, but one day, Gwan-woong's men find Seo-hwa alone in the forest. Wol-ryung rushes to help her and reveals his true form, massacring the soldiers. Seo-hwa, horrified, leaves him, and he is later killed by the righteous soldier Dam Pyeong-joon (Jo Sung-ha), who had been told that the gumiho was murdering innocents. Seo-hwa soon discovers that she is with Wol-ryung's child and gives birth to a son. Realizing that the baby isn't a monster and regretting her betrayal to Wol-ryung, Seo-hwa entrusts the baby in the care of a monk, So-jung (Kim Hee-won). She then confronts Gwan-woong, but is killed.