アイリ・アーカディア
from Undefeated Bahamut Chronicle
Age
16
Airi Arcadia (アイリ・アーカディア Airi Ākadia) is Lux Arcadia's younger sister and a student of the Royal Officer Academy. Like him, she is a survivor of the Old Arcadia Empire's Imperial Family, making her a former princess. Airi has a very calm temperament, as shown when she didn't panic even when an Abyss attacked the Academy.
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
