For many generations, the mystical land of Yenching had been inhabited by many animals, mainly cats, hares, frogs, and pandas. Because of a religious code called the Way, these four races had prospered throughout the ages in their own separate towns. But as the years passed, the younger generations began to defect from the Way. Ultimately, with no protective code to guide the races, Yenching was invaded by the Gorillas and the Rats (known as the Din), led by Gorilla Minister Shun and Tak, the Rat Alchemist. Minister Shun now rules the majority of Yenching with an iron fist, and is said to reside in the volcanic mountain of Waa-Lo.