Give to the Heart 

Earth suffers a cataclysm. Three godlike beings emerge to rule over survivors. Overlord Ga-Nok controls all waters. He nourishes nations with rain or blights them with drought. Yet, despite his terrifying abilities, the Water King can't win the heart of the woman Su-I because the human heart contains more intense storms than even he can create. Furthermore, Su-I seeks to fulfill a vendetta... and the power to slay the Water King.