In the land of Fronaldo, the Republic of Biscotti has been aggressively attacked by the Lion Kingdom of Galette. Facing potential defeat, Princess Millhiore
summons a hero who can save the country. What she gets is Izumi Shinku
, a middle-school boy from Japan. Awaiting him in Fronaldo is the task of becoming hero enough to defeat his enemies while learning the peculiar rules of battle in this strange new world.
Republic of Biscotti faces a predicament by the invasion of Galette Leo Knights. In order to save the country, Princess Milchore summons a “hero” from the outer world. Cinque, a junior high school boy living on the Earth, is chosen as the hero.
In the magical land of Flonyard, animal-eared inhabitants battle each other for resources in harmless war games. One region, Biscotti, has fought valiantly but is on the verge of financial ruin when its princess, Millhiore, makes a decision: she’ll summon a champion who can fight for their honor! Through a magical portal comes Shinku, a once-typical middle school student who’s eager to join the cause. But soon, both Millhiore and Shinku make a terrible discovery: those who are summoned can’t return home! Now, as Shinku continues to train and fight for Biscotti, he and the others must also try to find a way for the boy to someday get back to his loving friends and family.