The two tribes that are incompatible with each other, Hawk and Volcano, have been killing each other until one day MountainGod cast a curse on Hawk's tribe and exiled them, and the conflict between the two tribes was finally settled. After several generations, Han from Volcano and Soo from Hawk fell in love with each other and gave birth to their beloved daughter Bi. However, their families were gone due to Soo's ambition to unify the world. Soo also planned to kill his daughter Bi and use her as a sacrifice to MountainGod. Han took Bi to his own Volcano tribe. There, Bi became friends with three warriors, Dan, Juk and Yeon, but Bi's death ultimatum came suddenly...