Undefeated Bahamut Chronicle
A former priest of an empire called Arcadia which has been overthrown with a rebellion five years earlier, lux trespasses in a lady dormitory's bathing areathat sees the fresh princess Lisesharte of the kingdom incurring her anger. Lisesharte challenges Lux to a duel that is Drag-Ride. Drag-Rides are. Lux was called the most powerful Drag-Knight, but today he's called the"undefeated weakest" Drag-Knight because he will no way attack in conflict. After his duel with Lisesharte, Lux ends up on attending the academy that trains royals to be Drag-Knights.