As Dino was playing, Tetris discovered the hunter Mosasaurus ! Apparently, it has a terrifying jaw that can even take down sharks! What's more, it's said to be the " that tree " of the world , and the scales from it are so exciting!

Kanna and Dino were led to a place where a "real animal " was being raised! It was a chubby and cute Steller's sea cow. But it was " too heavy to fly " !? So what will it be used for !?