She is a Chinese girl who lives with her sister Jeijei in the Huangshan mountains of China and befriends Stitch. Similar to Lilo's life, both of her parents have been deceased. Ai's aunt Daiyu wants her to move out of her home. After meeting Stitch, she invites him to live at home.
Ai's sister Jeijei works at a Chinese tea shop owned by a man named Mr. Ding.
Ai also helps Stitch to avoid being captured by the Space Pirates.
Ai is very knowledgeable about the Chinese mythical creatures that Jumba created.
Ai encountered Stitch when he was falling from the sky and Ai saw a light crashing down from her room. When she went to investigate, she saw Stitch floating towards her.
In one episode, Ai mimicked Stitch's taunting act in which he stands on his head with his two hands flat on the ground and shakes his rear end (just like in the original movie).
In another episode, Ai tried to teach Stitch how to mountain climb.
In yet another episode, Ai saw Stitch making a replica of a city out of the things from her house and destroying it.
In a two-part episode, Ai screamed very loud to get Stitch's attention when he was destroying things.
When Stitch became monster-sized and developed four tentacle-like claw blasters, he tried to destroy a city under construction, but Ai restored Stitch back to his original self with her friendship towards him.
Ai trusts Stitch to a certain degree. For example, she believes Stitch for not destroying a dragon float via fire, and the girls blame Stitch for it right before Chinese New Year.