Android 18 began life as the human Lazuli, forcibly transformed into a cyborg by Dr. Gero alongside her twin brother, Android 17. This process integrated bio-organic enhancements and a perpetual energy reactor granting limitless stamina, while preserving her capacity for human reproduction. After Gero's demise, she shifted from antagonist to ally, eventually marrying Krillin and having a daughter, Marron. Her personality blends stoicism, dry humor, and tactical pragmatism. Confident in combat and valuing self-sufficiency, she also demonstrates protectiveness toward her family. Financial incentives often drive her decisions, such as entering tournaments for prize money. Despite a reserved exterior, she shows loyalty to allies like Krillin and Android 17, along with concern for teammates during conflicts. In *Dragon Ball Super: Super Hero*, Android 18 aids in combating the revived Red Ribbon Army. She participates in the final battle against Cell Max—a bio-android created by Dr. Gero's grandson, Dr. Hedo—alongside Krillin, Goten, Trunks, and Bulma. Her involvement stems from Krillin's familial connection (as a police officer investigating the Army) and her role as a Z-Fighter. She contributes to subduing Cell Max during the battle. Her abilities encompass superhuman strength, speed, flight, energy projection, and near-limitless endurance from her perpetual energy reactor. She maintains these capabilities across all appearances, utilizing them in confrontations from early battles against the Z-Fighters to later crises like the Tournament of Power and the Cell Max incident. Android 18's visual design evolved throughout the series. In *Super Hero*, she wears a practical magenta tracksuit jacket with light gray capri pants featuring pink linings, gray shoes, and fuchsia socks, reflecting her active role. This contrasts with earlier attire like her introductory denim vest and skirt, or the business attire seen at *Dragon Ball Z*'s conclusion.