Zia Simpson

Zia Simpson is the future daughter of Lisa Simpson and Milhouse Van Houten.

History
Lisa was annoyed at Zia as she always seemed to rebel against her. Lisa made her come to Homer and Marge's house for Christmas. While there, Zia spent all her time online. Eventually, Lisa went online to find her. After Googling her, Lisa finds out that Zia does look up to her, while a party is going on next door.

Lisa had a picture of Zia in her house.

A clip of Zia Simpson with the family was seen.

Physical appearance
Zia looks almost exactly like Lisa. This is due to her being genetically engineered from the best of Lisa's and Milhouse's DNA, which, as Milhouse ruefully observes, means that almost all of her DNA came from Lisa. Zia's only visible feature that appears to originate from Milhouse's DNA is a single lock of blue hair.

Tattoo
Zia has a tattoo on her left upper arm which is evidently a hologram or similar technology as it changes into different designs. It has been seen changing into several different shapes, including:
 * A plain circle
 * A
 * A symbol
 * A symbol