from Undefeated Bahamut Chronicle
Origin
Ymir
Krulcifer is the user of the Divine Drag-Ride "Fafnir". She has light blue hair and has been decribed as a perfect work of art, showing neither strain nor slack and has a mature air around her. She is daring and straightforward when it comes to her feelings having kissed Lux on the lips twice during their time as "girlfriend/boyfriend".
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 Weakest Bahamut") is a Japanese light novel series, written by Senri Akatsuki and illustrated by Ayumu Kasuga. SB Creative has published nineteen volumes since August 12, 2013 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. Source: Wikipedia
