To discover more about the world outside, Kamuna leaves Ryujinkyo. He soon finds himself in the Demi-Deer Kingdom, a land of gorgeous grasslands ruled over by a mysterious king attended by a sweet demi-deer named Epa. Epa befriends Kamuna and shows him the ways of the herd. However, Kamuna soon finds that Epa is not what she seems—and meanwhile, some of the elders in Ryujinkyo are anxious that Kamuna has betrayed them. How will Kamuna prove his innocence?