Undefeated Bahamut Chronicle

Undefeated Bahamut Chronicle (最弱無敗の神装機竜バハムート, Saijaku Muhai no Bahamūto, lit. “Undefeated and Weakest Bahamut”) is a Japanese light novel series, written by Senri Akatsuki and illustrated by Ayumu Kasuga and Yuichi Murakami. SB Creative published twenty volumes from August 12, 2013 to August 6, 2020 under their GA Bunko imprint. A manga adaptation written by Itsuki Watanabe, with art by Fumi Tadauri, was serialized by Square Enix and GA Bunko’s online magazine Gangan GA from July 17, 2014 to May 11, 2018. It has been collected in eleven tankōbon volumes. A 12-episode anime television series adaptation by Lerche aired between January 11 and March 28, 2016.