Dolphin Blue

You take on the role of either Ann (a royal army soldier who is out to protect the kingdom) or Erio (an arms dealer with a thirst for action). The game is set in the future and it appears a major incident has transformed what used to be a peace-filled nation into a troubled land of waste and ruin. What exactly has happened in this land remains unknown but whatever it was, it has damaged the earth's surface. Now the entire location is immersed in water.