Saijaku Muhai no Bahamut

Lux, a former prince whose empire fell to a revolt five years ago, accidentally enters the girls’ dormitory bathroom and meets Lizsharte, princess of the new kingdom. Her angry challenge leads to a duel—and to Lux enrolling in the academy that trains Drag-Knights. Drag-Rides are ancient weapons recovered from ruins, and Lux was once known as the strongest Drag-Knight. Now called the “Weakest Undefeated,” he is a fighter who never attacks. At the academy, he finds himself surrounded by noble girls as a battle of skill and power begins.