The boy who took red eyes encounters an angel with sky blue eyes. Even though something feels familiar about each other, their memories cannot wake up from their slumber in the far-away sky. Which route will they choose to face? The world begins to turn, centering on the two who bring sins and gospel.

The path of a red-eyed boy and a white-winged angel cross together on the battlefield. When they meet, they started the path of their destiny, unexpectedly recalling their past memories… what decision will the two make? This is the start of a fantastic journey full of magic and fights in order to streak across the heavens.