Airi Arcadia is a character from the Saijaku Muhai no Bahamut light novel and anime.
Lux's younger sister. She seems to love him more than a sister normally should, but she's not afraid to berate him. She also dislikes it when Lux puts himself in harm's way or if he is constantly pushing himself for her or someone else. She also tells anyone within hearing range about her brother's abilities (usually Noct) whenever he's in an important combat. She does her part to help pay for their family's debt to the New Kingdom by working as a researcher and scholar of the ruins within the academy.
In the XP4 fics, Airi is a member of the Heroes Coalitions and is an honorary member of the Cross Guards. She also attends the Vanguard Academy as a student.
In the TWA fics, Airi debuted in the Twisted World Animania - Undefeated Bahamut Chronicle.
Airi has silver hair and ash grey eyes from being part of the Imperial Family. She is shown wearing the standard academy uniform. She wears a black collar as a sign of amnesty from the New Kingdom of Atismata.
Airi is mostly calm and care about her brother. In the Light Novel she is shown to care toward her brother and somewhat act like a mother to her brother. In both manga and light novel, she is calm when the Abyss attack the arena.
- Airi is roommates with Noct.
- In the XP4 fics, Airi is the only non-combat honorary member of the Cross Guards.