Hart (Kappei Yamaguchi) is a Tyrannosaurus Rex raised by herbivorous dinosaurs. In fact, as early as when it broke out of its shell, the leader of the herbivorous dinosaurs ordered Hart's mother (Tomoyo Harada) to abandon it, but the mother eventually raised it secretly. As he grew older, Hart, who only ate wild fruits every day, was hungry every day. In the end, he couldn't resist the instinct and began his brutal career of eating meat. However, due to the influence of his mother, Hart always had a kind heart deep in his heart. One day, he occasionally encountered a herbivorous dinosaur baby that broke out of its shell. Hart was mistakenly regarded as "Dad" by the dinosaur baby, and named the little dinosaur "Very Delicious", and since then, another strange dinosaur father-son relationship began. However, with the deterioration of the living environment, the survival of the dinosaurs suffered unprecedented damage. Can Hart and his relatives finally stand the test... This article is adapted from the comic of the same name by the famous Japanese cartoonist Miyanishi Tatsuya. This book has won the Kenyuan Picture Book Award.