It is said that during the establishment of the fledgling Joseon Dynasty, six dragons held vast powers and each fought for their political views. These six dragons — Prince Lee Bang Won (Yoo Ah In), Jeong Do Jeon (Kim Myung Min), Lee Seong Gye (Chun Ho Jin), Boon Yi (Shin Se Kyung), Ddang Sae (Byun Yo Han) and Moo Hyul (Yoon Kyun Sang