Choi Kang Chi is a half-beast and half-human and was adopted by a merchant Park Mu Sol when he was a infant. Kang Chi has a kind of unusual power. Dam Yeo Wool is the daughter of Dam Pyeong Joon who is the owner of the Invisible Knife Moo Kwan and also a patriotic warrior. Kang Chi and Yeo Wool meet and fall in love with each other. However, there is hatred between their fathers. Jo Gwan Woong is a traitor. He uses his power to frame faithful and upright individuals and obtain profit for himself. His criminal plots are destroyed by Kang Chi time and again. Therefore, he is determined to kill Kang Chi through different ways. Kang Chi is troubled by his identity but stands up for justice.
as Choi Kang-chi
as Dam Yeo-wool
as Jo Gwan-woong
as Gon
as Park Tae-seo
as Park Chung-jo
as Dam Pyeong-joon
as Gu Wol-ryung
as Yeo-joo
as Kageshima
as Chun Soo-ryun
as Sojung
as Park Mu-sol
as Ma Bong-chul
as Ja Hong-myung
as Lady Yoon
as Pil-Mok
as Seong Yi
