Jian, an S-rank guide in Korea who isn't compatible with any espers, people gifted with superpowers, finds herself on a strange continent one day. There, she meets Duke Wisrode, an esper she can finally guide. However, her excitement is short-lived when she discovers that she is the only guide in this land, which is full of espers, and the duke wishes to keep her to himself. Will Jian be able to find her way back to her own dimension safely? Or will she be stuck here as the lone guide forever?