It has been ten years since Andrew and his younger sister, Azure have been sent to another world, a world not so similar to theirs but it shares one factor in common, in both worlds magic existed, though the world they've been sent to witches are split into two factions, the cultists and the white witches. That gives Azure, a witch in the making some minor problems all of which his older brother, Andrew handles. And now that ten years have passed, Andrew and his sister have grown accustomed to the new world and family that they have. But in one particular day, a witch decides to terrorize the kingdom of Mires, threatening to burn it down to the ground.

This story will revolve around Ken Tokoharu, a Japanese representative student in Mageia, a boarding school in the city of Eden located in the pacific ocean and is dedicated in fostering it's students magical traits. Though Tokoharu is a representative of japan, he lacks in magical prowess but he makes up for it in athletic ability. But even so, his grades are at the lowest of the low when it comes to magic. Giving him the nickname "Worst wizard." but not only do the students mock him for having little magical ability, they also criticize his choice of 'wand'. Most wizards feel comfortable with using a wand or a staff, but Tokoharu was a special case since he uses a katana to conjure up spells, and because of that he is ridiculed by his classmates, calling him by his title over and over again. But even the constant ridicule didn't made our protagonist falter, no he was completely unfazed by his classmates insults and criticizing. And on a fateful morning, he is confronted by one of the seven high ranking witches in his class, Adonia Aife Locksworth, a representative of England who took a fancy towards his classmate and demanded a dual with him. And so begins his life filled with unforgettable moments.