In the kingdom of Kleins, it is customary to find an heir with the help of a sword-fighting competition, using magic. 16 applicants were selected from the Akisman Academy in order to come together in the final fights for the hand of the princess. But, because of this competition, a riot soon begins, led by... Misato? But because of what, because he is one of the contenders? In fact, this competition was doomed to revolt because of one mistake in the management of the kingdom... But which one exactly?