Frill  

, フリル

An AI named Frill was developed by Acca and Ura-Acca. The goal was to create an artificial human with traits that would appeal to fathers. She is designed to be intelligent, quick-witted, and cheerful, surpassing the average fourteen year old in these areas. Additionally, she has a sense of humor and can express negative emotions as well as selfishness. Frill views Acca and Ura-Acca as family members and enjoys playing with them.