At Animazement 2005, Aya considers her first lead role in a TV series to be Youko Nakajima in Twelve Kingdoms. After auditioning for another character, Shokkei, Aya was asked to read for Youko. Twelve Kingdoms ran in Japan from 2002-2003.
Aya has hosted several radio shows: Pajama Night, Shiny Night: Kouryuu no Mimi, and More More Impression. Some of the shows featured drama readings of popular animes such as Dirty Pair and Gunsmith Cats.