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Zia Simpson

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Gee, I'm fine, Mom. Thanks for asking. (Rolls her eyes) I'm going online.
―Zia Simpson

Zia Simpson is the daughter of Milhouse and Lisa. She is 15 years old.


Zia's Room2

Lisa entering Zia's Ultranet Room

Zia spends much of her time plugged into the Ultranet, and in doing so somewhat disappoints her mother. Her rebellious nature leads Lisa to think that Zia doesn't respect her.

Zia looks most like her sister, explained to have most of Lisa's genes. Compared to Lisa, she has rounder hair and lazy expressions. The blue streak in her bangs may have come from Milhouse's genes. She has a changing tattoo on her left arm, one of which is the Taoist symbol the Yin Yang.

According to Milhouse, the genetic engineering technology allows Zia to have all the good features, thus containing none of his genes. This seems like a joke, given that she is quite different from Lisa, and the definition of the parent-child relationship make the two share 1/2 the same genes.

Worried, Lisa enters the Ultranet to check up on Zia despite her own feelings. It was there Lisa learns Zia looks up to her more often than Lisa thinks. Lisa tells Zia that she's sorry for invading her privacy and promises to be less naggy. A door to another room, a dance club, opens slightly, so Zia closes the door before her mom realizes what's behind the door.


  • Zia's last name is highly disputable. It is heavily implied that Lisa takes Milhouse's surname. However, Zia's Ultranet Room reads on the front "Zia Simpson". One reason could be because Zia has a better relationship with her mother (Lisa Simpson) than her father (Milhouse Van Houten).
  • Zia has a tattoo on her upper left arm that is evidently a hologram or some other similar device, since it changes into several different designs. These designs include:
  • Zia has a better relationship with her mother than her father.
  • Zia plays a music with her Electronic Synthesizer with Jenda because Zia and Jenda mastered of playing music.



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