Twelve teenagers from around the world are brought together by a strange woman named Bertha. They are informed about the dangers lurking around the world and are on the hunt for them. They find out they're all reincarnated from a different universe and that they still have the powers they possessed in their past life. Their main goal is to train their skills and powers, but to unlock their full potential they have to remember. Sparks fly between some as they discover that they were lovers in the past but some choose a different path.