Feldt is the daughter of Ruido Resonance and Marlene Vlady, who initially worked under Celestial Being as Meisters for the 2nd-generation GNY-series Gundam prototypes and later got married. In the beginning of the series, Feldt works as the tactical operator of Ptolemaios and later the Ptolemaios 2. In addition to her programming skills, Feldt is also a capable mechanic. At the end of the season, Feldt remains with Celestial Being-wiki