Undefeated Bahamut Chronicle is a tV series anime that premiered in winter 2016, produced by Lerche.

About the production: the story comes from a light novel, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are action, ecchi, fantasy, mecha, romance and supernatural, with themes such as Super Robot, Female Harem, Primarily Female Cast and Male Protagonist.

On AniList, Undefeated Bahamut Chronicle has an average score of 62%, an average score, and appears on 100,659 users' lists.

The Royal Knight Academy was established to train the heirs and scions of the lands how to fight using the ancient mechanical dragons known as Drag-Rides. Those noble intentions, however, go royally astray when Lux, deposed prince of the Arcadia Empire, accidentally stumbles upon the Kingdom of Atismata's new Princess Lisesharte in her royal bath and sees altogether more than he should have. Challenged to a Drag-Ride duel when the Princess bares her anger, Lux finds himself thrust into a series of events that could ultimately expose the darkest secrets of both their royal families! (Source: Sentai Filmworks)

Official synopsis from AniList.