As a digital lifeform, Aya can modify some details about her appearance, usually to perverted ends. She can swap her genitals as she likes, and whilst it's more like patching/modding software, she chooses to go with the "cybernetic augmentation" look out of aesthetic preference. Other common modifications is breasts
/ass enlargement, or taking on traits of various monster girl archetypes.
She has long black and Blue Hair, Rabbit Ears, Green Eyes, and Glasses.
