Lisan, the fisherman always believed he was descended from Bruneian royalty and he wanted to prove it. Returning to the Water Village after eight years, Lisan reconnects with his estranged wife Bathia to recover an underwater treasure that will establish his royal birthright. As the story of Lisan’s true intentions unravels, including what he was really doing in those years away, it becomes intertwined with the ancient history of two doomed royal siblings and a fearsome serpent god called the Nabau.