Zia looks near identical to her mother, Lisa, due to apparently having most of her genes. Zia’s hair is similar to Lisa’s, except it is rounded instead of pointed, and she has a longer lock of blue hair, which may have come from Milhouse’s genes.
Zia spends much of her time plugged into the Ultranet, and in doing so somewhat annoys and worries her mother. When she is not plugged in, she is shown to be sarcastic and arrogant around Lisa. Her rebellious nature leads Lisa to think that Zia doesn’t respect her, stating that Zia thinks she’s a “ruthless tyrant”, and questioning how she had a daughter that ended up like her brother, where ironically she acted no different as a child towards Marge, her own mother.