In a magical land where two moons shine in the night sky, one young student in the magic school, Louise, has acquired the nickname of "Zero." Why? Her "zero" talent! With a near-perfect failure rate for her spells, the shock that Louise's summoning spell works equals the surprise of her new familiar, a human boy from Japan! When the boy begins exhibiting some unexpected abilities, why do the teachers get so nervous?

In a magical land where two moons shine, one student in the Tristein Academy of Magic, Louise, has acquired the nickname of "Zero." Why? Her "zero" talent! With a near perfect failure rate for her spells, the shock that Louise's summoning spell works equals the surprise of her new familiar, a human boy from Japan! The boy, Saito, must now serve Louise, but if he gets caught checking out the lovely ladies of Tristein Academy, he will feel his master's wrath!