On the opening day of veterinarian Choi Jung’s new animal hospital, everything goes wrong when he discovers a pesky little lizard out front. But this creature insists he is the son of the Dragon King of the East Sea. This being is not only a dragon, but in his human form, insists on sharing, ahem, “life essence” with the human. And in his pursuit of becoming a proper adult dragon, will Woonwoo the dragon prince succeed in finding the inverted scales he so desperately seeks?