In the distant Eastern Kingdom, it is said that there used to be mythical beasts there. Two ponies strayed into the forbidden area and broke the formation of the mythical beasts to suppress the evil creatures. In order to prevent the situation from getting worse, the leaders of the Eastern Kingdom continued to suppress the evil creatures at the cost of turning themselves into stones. They sent the younger brothers of the two ponies who strayed into the forbidden area to Equestria. The younger brother inherited the bloodline of the mythical beasts. It is hoped that one day the younger brother can discover the bloodline of the mythical beasts and save the Eastern Kingdom.
Really good hehe