Tessalin lives in a world at war, with stars that fall from the sky. These stars produce monstrous energy beasts that wreck havoc, seeking to consume all mana. Tessa and her twin brother Medo are promising young star hunters, selected due to their unique and powerful mana cores. Using the power of these cores, hunters can transform into elementals who can wield great power to fight back against the never ending star falls. Tessa quickly discovers a dark plot that will threaten everyone's lives if she cannot stop it.