Onna Gebowa is determined to become a great wizard. She can write the parameters of a spell faster than any of the young men in her village school. But despite her incredible abilities, she's denied a place at the nation's premier arcane academy. Undaunted, she sails to the bustling city-state of Hexos, hoping to find a place at a university where they don't think there's anything untoward about providing a woman with a magical education... Far away in Hexos, the newly arrived Onna is also drawn into a mysterious, magical attack on a troll. Trolls have lived alongside—and been revered by—humans for generations, but now it appears they're being targeted by a sinister sorcery.