The anime revolves around the central theme of "I Want to Go Home." In ancient times, chaos reigned as wars raged, and vast forests were seized and burned by humans. A group of mythical creatures, led by the Fire Phoenix and Thunderbolt Horse, were forced into the modern era. Witnessing the relentless cruelty humans inflicted upon animals, they resolutely embarked on a journey across mountains and rivers, traveling through different dynasties in search of the once-free and idyllic paradise they had lost.