Harrison Cole works with his older brother, Frederick Cole. His brother and sister-in-law fob him off, eyeing his Homestead Plot. Harrison is possessed by a Divine Dragon, obtains the Dragon Pearl, becoming the Sea Dragon King. He can breathe freely underwater and communicate with fish. He strikes out on his own, taking his childhood friend, Toby Jones, to sea. They bring in a huge catch and find treasure, earning a massive fortune with his wife and child.
