Fail Phonaf, a struggling student at the Summoner's Training Academy, summons a "one half" summoner, a mythical "Pandora," a demonic beast from the end of the world! It is more than 300 meters tall. Fail has made the strongest summoner that has killed many gods his partner, but there is one big problem... ( I'm sure of it. In order to win the tournament against Sasha Sid Zeurtania, the princess and head of the academy, he and his teammates must find a way to move Pandora's corpse, which is completely immobilized. A summoner's summoner battle fantasy that will eventually save the world!