Part of a community of Chameleons living in Rainbow Valley on Angel Island, Liza welcomed Espio when he arrived from the Dragon Kingdom to begin observing Knuckles the Echidna for the Bride of Constant Vigil. Whether or not she was a native of the island, she, like Espio and his mentor, Valdez, was a member of the Dragon Kingdom's Shinobi Clan. She later approached Espio during his time as a member of the Chaotix after he came across a wounded friend of theirs, Barney, and had Julie-Su take him to Echidnaopolis for medical attention. Though disapproving of Espio's taste in friends, she agreed to reveal the mystery of Barney's injuries to him. Espio got more than he bargained for when she led him to a roboticized Valdez, who had subjugated the Chameleons on the orders of his master, Dr. Egg