In a world where only water magic exists, the Qualler are water manipulators who maintain the balance of nature. They live in peace, but the shadow of an ancient battle with the evil group that controls blood, Mavra Aima, always looms. For centuries, the two have been arch-enemies, fighting in the shadows and sacrificing many lives.
Munrha, a young Qualler is unaware that dark blood runs through his veins—he is the descendant of Mavra Aima, a group that controls blood and brings disaster. When the threat of Mavra Aima resurfaces, Munrha must face the terrifying truth: his very existence could destroy the world he loves. Will he stand his ground, or follow his dark fate?
This storyline uses a backward flow, which means that this episode is the final episode. The more the episode continues, the more the story will head back to the origin of the events in this episode.