"Once, they thrived on Earth, but have since gone extinct. Humans call them prehistoric creatures———" Trilobites, placoderms, Ichthyostega, and Tyrannosaurus rex! A prehistoric creature comedy unfolds with Kitaya Tetri, a die-hard prehistoric creature enthusiast; Nakazato Kanna, an aspiring idol; and the mysterious Dino-kun! Now, step into the world of true prehistoric creatures!!