Not everyone is born to be a hero. Hikaru is satisfied with the simple life she leads in her quiet fishing village, but when the ocean's waters grow scarce with fish, she takes investigating into her own hands. She meets the legendary Guardian Seiryu who, despite his injuries, gives her a terribly dangerous gift. She now possesses the ability to manipulate water. Magic is the talk of folklore, but she learns the truth of how real it can be...