There was another world like Earth but their existence is with magic. There was a prophecy that whoever got isekai in this world is going to become a familiar including being a Celestial candidate but a curse is within, for the Demon Lord will also choose the person as his candidate that will cause chaos. Unfortunately, the previous Celestial had cause chaos due to the Demon Lord’s familiar and a new prophecy was created by the Guardians to stop the past from happening again.