Onna 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. But as soon as Onna arrives, she’s drawn into the mysterious murder of four trolls.