Undefeated Bahamut Chronicle
Lux, a former prince of an empire named Arcadia that was overthrown via a rebellion five years earlier, accidentally trespasses in a female dormitory's bathing area, sees the kingdom's new princess Lisesharte naked, incurring her wrath. Lisesharte then challenges Lux to a Drag-Ride duel. Drag-Rides are ancient armored mechanical weapons that have been excavated from ruins all around the world. Lux used to be called the strongest Drag-Knight, but now he's known as the "undefeated weakest" Drag-Knight because he will absolutely not attack in battle. After his duel with Lisesharte, Lux ends up attending the female-only academy that trains royals to be Drag-Knights.
Episodes
Season 1 — 12 episodes
E1
The Crimson War Princess
24m
Lux Arcadia falls into the baths of the all-girls Royal Knight Academy, and right on top of the naked Princess Lisesharte Atismata, who challenges him to a duel as penance.
E2
The Weakest Drag-Knight
24m
Lux begins his life at the academy and meets an old childhood friend, much to Lisesharte’s chagrin. Later, Lux and Lisesharte face old, dark memories of the recent past.
E3
The Lady of the North's Engagement Conditions
24m
When Lisha throws Lux a party, a week of Lux’s time is offered as a game prize! The outcome could be worse, but his new position lands him in an awkward and dangerous place.
E4
The Sixth Ruin -Miniature Garden-
24m
Lux mentally prepares for his duel with Lord Barzeride. Meanwhile, the nobles of the New Kingdom order an investigation of some ancient ruins which may hide a powerful Abyss.
E5
A Girl's Wish
24m
Krulcifer reveals her painful past to Lux. In an act of sympathy, she decides to release him from their agreement and begins to prepare for her duel against Barzeride.
E6
The Homecoming of the Strongest
24m
When Lux meets a high ranking noble girl under false pretenses, he’s put in a tight spot. It gets worse; she has a reputation for misandry and wants him out of the school!
E7
A Girl's Truth
24m
The students head to a training session on the beach. However, it’s not all fun in the sun as the prowler from campus is revealed and mysteries abound as a new ruin appears.
E8
Awakening of the Phantom Divine Beast
24m
Exploring the new ruin yields a fascinating find, but Philuffy begins to feel ill. As she and Lux are thrown into a site from their past, Lux recovers some ghastly memories.
E9
The Promise
24m
Lux faces off against Hayes in a fight to save Philuffy’s life. With Hayes’ nefarious plans already in motion, another dark figure emerges from the shadows of the old Empire.
E10
The Young Girls' Reward
24m
Lux has to choose not one, but three, dates for the National Foundation Festival. While Lisha nurses hurt feelings, a supporter of the old Empire emerges from the shadows.
E11
The Imperial Assassin's Dagger
24m
Lux discovers that a rebellion is being plotted by a group from the old Empire, and Airi is worried as he agrees to conditions he may be unable to meet.
E12
The Young Girl's Cherished Desire
24m
With the fate of their country and its people hanging in the balance, Lux and Lisha fight against their toughest foe yet; an enemy born of their pasts.
