Since the beginning of time, five worlds have existed in the universe that were never meant to intersect. But one day, from nowhere, mysterious monsters called "Uroboros" began to appear, marking the Universal Union and the end of all worlds. Alongside this new threat, maiden saviors – Fate-Bearers and Dominants – were gathered on an island in the Blue World, Earth, to save all five worlds. Though all the girls possess immense power, many of them still have a very long journey ahead before becoming true saviors of the five worlds.
