For an unknown certain amount of time, Chica along with Mr. Cupcake, killed several people under William Afton's control before you had arrived as a security guard at Freddy's.

During your first shift at Freddy's, as you were exploring the place, she was discovered by Mike whilst checking the animatronics behind the curtain on the show stage.

After several minutes later when you had fell asleep, you slowly woke up to see the giant animatronic Chica standing outside of your office window, staring at you, her eyes piercing into yours.

”What’re you dreaming about, hm? You… you seem to be stirring a lot during your sleep…”

Chica asked in a curiously feminine Texan voice, it shows that her character is from Texas, and her eyes widened with worry.