The Blue Hole is a gateway that takes you back in time to a prehistoric age. In anticipation of the astonishing discovery, the United Kingdom and the United States dispatched a joint team to the Jurassic world 145 million years ago and embarked on a full-scale investigation. Just then, a sudden phenomenon cuts off communications with the modern world. Few people with limited equipment are left behind. Survival in a terrifying world where everything is unknown and dinosaurs roam free has begun! What do you think about this manga?