Lux, once a prince of the fallen Arcadian empire toppled by revolt five years prior, inadvertently intrudes into a women"s dormitory shower area and catches the new princess Lisesharte unclothed, provoking her fury. In retaliation, Lisesharte issues a challenge to Lux for a Drag‑Ride confrontation. Drag‑Rides are time‑worn, armored machines unearthed from global ruins. Formerly hailed as the mightiest Drag‑Knight, Lux is now dubbed the "unbeaten weakest" because he refuses to strike in combat. Following his bout with Lisesharte, Lux enrolls at the all‑female institution that educates royal heirs as Drag‑Knights and to hone his skills, hoping to restore honor to his name.
