Aysun appears to be a fairly recent addition to the group inhabiting Shardmoon Castle, so it is unknown how many times she actually saw combat.
Once Crescentia approved of their presence, Aysun acted as a guide for the party throughout the Castle. During her travels, she wound up fighting alongside the party against minions of Iris Four and Raziela the Shroud.
Dialog Theme: I’m not sure, but I remember using Umineko no Naku Koro ni – Golden Shadow
Cornered Battle Theme: BeatMario(Cool&Create) – Night of Nights
‘C’ stands either for Construct or Clockwork. I’m sure it says in Koray’s notes. Aysun means “as beautiful as the moon” in Turkish, which was intended to reflect her origins as a masterpiece gift to Crescentia.