A gigantic city suddenly appeared on the Iberian Peninsula after the Great Cataclysm, with Dragons, Fairies, Elves, Golems, monsters and other mythological beings appearing soon after, plunging Midgard into conflict and beginning the cruel reign of the Feudal Lords. This series of events led to the encounter between a flower and a girl. Simultaneously, an individual named Alan has a fateful encounter with a pair of white-haired siblings in a city covered in salt, in a world where humanity is at risk of extinction. Whether by fate or magic, Alan finds himself in the cruel and unknown land of Midgard, accompanied by the two magical books, Grimoire Noir and Rubrum. Now Alan tries to find a way to return home while crossing paths with a pink-eyed girl.