Once upon a time a violent, mean, selfish Tyrannosaurus roamed the land, and all the other animals feared him. One day, while chasing small, defenseless animals, the Tyrannosaurus falls into the ocean. The Elasmosaurus, who lives in the sea, saves his life, and the Tyrannosaurus says “thank you” for the very first time. From that day, the land creature and the sea creature become best friends, even though the Tyrannosaurus feels guilty about hiding his true nature. Then, when the Elasmosaurus is attacked by a violent dinosaur of the ocean, the Tyrannosaurus tries to save him even though he knows he can’t swim….

The author, Tatsuya Miyanishi, delivers a heartwarming story about real friendship with vivid, brightly colored illustrations and endearingly drawn characters.