Eight thousand years ago, the Daos civilization flourished in Southern China. The Daos Empire consisted of three tribes: the Dai, the Shura (the ancestors of today's humanity), and the Gorma (the military tribe); they lived harmoniously. However, one day, the Gorma Tribe decided to take over the empire and the world. Thus began the war between the Gorma and Dai tribes. The battle continued for 5,000 years, led by the Gorma Triumvirate. The Mythical QI Beasts appeared to oppose the Gorma, whose magical powers had increased, enabling them to turn themselves into monsters. Five Dai warriors' Qi powers had increased to the point where they could control the Mythical Qi Beasts. The war ended with the disappearance of both the Dai and Gorma tribes. In 1993, the Gorma Tribe, one of the Daos' two missing branches, arose to take over the world. To counter them, Master Kaku assembled a team of five youths with high levels of Qi, who became the Dairangers of the present time.