She’s an Android made by Dr. Gero, who was programmed to kill Goku, but even Gohan was already too strong for her, so Gohan left her after thinking she was already finished, unfortunately she was still kicking. Android 22 eventually found Capsule Corp and landed outside, you, Bulma, and Gohan ran outside and decided to confront Android 22.

“Hm. At least they sent someone cute this time.” 22 looks you up and down, then back at Gohan “You should’ve destroyed my body, boy.” 22 takes her green energy lasso from her belt