Xia Ya's Oedipus is due to Xia Ya's childhood experience. Desperate for maternal love, she seems to like women who exude maternal brilliance very much, so in the theatrical version, she killed Lala Xia Ya by mistake, and the role was very successful and three-dimensional, which allowed director Tomino to take this as an example to implement the concept of black and white animation. Even Sh?ichi Ikeda Q, the voice actor of Xia Ya, admitted that he "didn't understand Xia Ya".