From a young age, Arche Folly has had recurring dreams of a certain girl named Arya, who had a mysterious past. He believes them to be recollections of his past life, and she lived as Arya. But, he thought that it was some fantasy that his mind made and tried to forget all those dreams. However, as time passes by, more and more dreams of his past life began to bloom. It all changed when he witnessed people around him start to claim that they had also been reincarnated, seeing evidence that they also came from the same place that Arche dreamed of. Reassured his past life is not merely a fantasy; Arche tries to learn more about his past memories and the reason behind them.