Fan theory by me :
When young lord Genome grew up, his spiral power made his pet Guame grow and gain human consiousness. Together they started creating beastmen with the beautiful young maidens from Guames' Harem/Beauty Village. I drew what I imagined would be Nia's mother and drew a young lord genome in comparison to Nia.
So in my imagination Nia inherited her dad's fluffy hair and pink eyes. Yes... he was a pretty boy haha ^^ Nia has a combined hair color of blonde from Genome and blue from her mother. The flowers in her moms eye were created by Guame over years of mutation with beasts. Guame created a harem of beautiful girls for Lord Genome where Genome would later treat them as dolls and keep creating new "dolls/daughters" out of boredom. Many dolls were abandoned as soon as he grew bored of them or when his spiral power made them gain self awareness. I have drawn 4 of Nia's previous sisters a few years back. I plan to re-draw soon based on these 'parents' I created. I hope you like it!