Android 18, originally named Lazuli, underwent cyborg conversion by Dr. Gero of the Red Ribbon Army alongside her twin brother Android 17. Designed to fulfill Gero's vengeance against Goku, the siblings rebelled immediately upon activation, killing their creator and abandoning his mission. This divergence from their destructive future counterparts—who ravaged Earth until eliminated by Future Trunks—defined her path. Initially projecting cool confidence and sharp sarcasm, she engaged in destructive acts but consistently avoided harming innocents. Her trajectory shifted after Cell absorbed her to achieve perfect form. Following her release during Cell's defeat by Gohan, she allied with the Z-Fighters. A pivotal bond formed with Krillin when she spared him in early clashes and kissed his cheek. Krillin later destroyed her deactivation remote and used the Dragon Balls to remove her self-destruct device, fostering mutual affection that led to marriage and their daughter Marron. As a wife and mother, she retained assertive traits while displaying fierce protectiveness toward family. She pushed Krillin to compete in martial arts tournaments for prize money and negotiated financial agreements, such as coercing Mr. Satan into sharing winnings. Maternal instincts drove her to confront Beerus for attacking child fighters during the Battle of Gods incident. Years later, she joined the Tournament of Power primarily for monetary reward but ultimately fought to protect Universe 7, defeating Ribrianne and enduring assaults from foes like Anilaza. Physically, she appears as a tall, fair-skinned woman with shoulder-length blonde hair often tucked behind her ears, blue eyes, and signature gold hoop earrings. Her attire evolved from denim vests bearing Red Ribbon insignia to practical tracksuits in the Tournament of Power and business-style clothing post-Buu saga. For *Dragon Ball Super: Super Hero*, she maintains her "Peaceful World Saga" aesthetic: a magenta jacket, gray-pink striped joggers, and fuchsia socks. Her cellular enhancements grant superhuman strength, speed, flight, energy projection, and limitless stamina via a perpetual energy reactor. Signature techniques include the Kienzan (Destructo Disc), energy barriers, and rapid-fire blasts. Though initially power-locked, later portrayals suggest potential growth through training, evidenced by her combat effectiveness against god-tier adversaries.