Undefeated Bahamut Chronicle
A priest of an empire named Arcadia which was overthrown via a twenty-six years earlier, lux trespasses at a dormitory's bathing area, finds the kingdom's brand new princess Lisesharte naked, incurring her anger. Lisesharte subsequently challenges Lux to a Drag-Ride duel. Drag-Rides are ancient armored mechanical weapons which were excavated from ruins all over the planet. Lux was called the most powerful Drag Knight, however today he's known as the"undefeated weakest" Drag Knight because he'll surely not attack in battle. After his duel with Lisesharte, Lux ends up attending the female-only academy that trains royals to be Drag-Knights.