Gourai

As the central protagonist of the series, Gourai stands as the sole FA Girl prototype to have successfully completed her activation sequence. Equipped with an adaptive growth-type AI, she initially exhibited rigid, expressionless behavior typical of a machine. However, through daily life alongside her owner Ao and countless battles with fellow FA Girls, she continuously accumulated experiential data—gradually decoding the nuances of human emotion and transforming from a purely mechanical entity into a being of remarkable emotional depth.