Princess Maker
Takami Akai, the character designer for the "Princess Maker" series of games (also by Gainax), was the character designer and original creator for "Yucie". Thus, there are many similarities between characters in the "Princess Maker" games and this series. Of note, Yucie's appearance is based on Lisa, the daughter from "Princess Maker 3"; the judge in the final episode has the same appearance as Maria, the daughter from "Princess Maker 1"; and the young Queen Ercell has the same appearance as Olive, the daughter from "Princess Maker 2".