Tyrano, a Ceratosaurus marketed as a Tyrannosaurus rex, struggles with loneliness and harbors an unusual fear of the dark despite his carnivorous appearance. After rescuing Punon, an orphaned Pteranodon unable to fly, from predatory dinosaurs, Tyrano forms a deep bond with her. Together, they journey across a prehistoric landscape seeking an earthly paradise. Their quest faces complications due to persistent pursuit by Gorgo, an albino Gorgosaurus leading a pack. Tyrano exhibits a non-aggressive nature, consistently refraining from killing, which contrasts sharply with his formidable physique. His relationship with Punon drives the narrative, centered on mutual protection and their shared goal of finding a permanent home. Other characters encountered include Tops, a young Triceratops separated from parents, and Ructo and Ruichi. The journey itself serves as the primary context for Tyrano's experiences and development.