The underworld of Felicidad—
In this place, human-like people as denizens lived in harmony with monsters. Ten, a boy living on the continent of Avrion, one of the five continents, was also one of them. He is a 'Farmagia,' who nurtures monsters from seeds, harvests them, and uses them in battle. To become one of the Oración Seis, rulers of the continents, he has been…