Chris Chiaki, a laid-back individual struggling with repeated college entrance exam failures in his mid-twenties, divides his time between Kendo training, tending to his family shrine, and reminiscing about his high school reunion aspirations. Unexpectedly, his spirit is whisked away to the realm of Byston Well, where he transforms into Garzey's Wing, a fabled holy warrior. Tasked by the Metomeus tribe to aid in their emancipation from enslavement, Chris grapples with his lack of warrior knowledge and wields a lackluster sword salvaged from a fallen warrior. Complicating matters is the existence of another Chris remaining in the real world, their destinies intertwined despite the former's inability to influence events in Byston Well. Amidst a backdrop of magical beings and enigmatic strangers, the young man embarks on a tumultuous journey of self-discovery and heroic endeavors.