Living in the wilderness surrounded in forest trees and predators, Kyou Naoryuu reminisce her biological family after she threw away in this oddly environment, remembered her past as a infant. She was raised by Mother T-Rex Queen alongside with her siblings through the years, helping Kyou's mystical and horror adventures. When Kyou grew old and become a matriarch on the entire forest, other dinosaurs (survived from nearly extinction) will greet her, marking as the new apex predator, reuniting her biological mother from the years of lost and taking revenge against her own father. Alongside with supportive friends like Hiku Hiroshima, Sylvia Momokuro, Violet Momokuro and Rosetta Shizuku, students from Aonogami Academy helping the villain protagonist Kyou to defend her territory.