In "Garzey's Wing," Christopher "Chris" Senshuu, a carefree man in his mid-twenties who repeatedly fails his college entrance exams, spends his days practicing kendo, visiting the family shrine, and looking forward to his high school reunion. Suddenly, his spirit is transported to the realm of Byston Well, where he takes on the identity of Garzey's Wing, a legendary holy warrior summoned by the Metomeus tribe to free them from oppression. Despite his new role, Chris has no idea how to be a holy warrior and only wields a very dull sword he found on a dead body.
Adding to the complexity, another version of Chris remains in the real world, unable to affect events in Byston Well but still linked to the destiny of his alternate self. This young man must navigate a world filled with mystical beings and mysterious outsiders, setting out on a difficult journey to find his way.