Ayla Chen チェン アイラ(Aira Chen) also known as Aira, Aila , is Hikitsu's younger sister who appears in the prequel series Fushigi Yuugi Genbu Kaiden. She is voiced by Sayuri Yahagi in Japanese. She positively idolizes her brother, probably because he dotes on her so much. In trying to warn her brother of a monster once, she was accidently frozen into a big chunk of ice by Tomite along with said monsters. Her beloved big brother watched over her frozen, but not dead body for an entire year before Tomite returned and was able to defrost her.