Designated Artificial Human #18, Android 18 began as a human forcibly transformed into a cyborg by Dr. Gero of the Red Ribbon Army. Her bio-organic enhancements granted superhuman strength, speed, stamina, flight, energy projection, and an unlimited energy reactor, while preserving her reproductive capabilities. Alongside twin brother Android 17, she initially pursued Dr. Gero's vendetta against Goku but displayed autonomy by disregarding his orders. Within the main timeline, she refrained from indiscriminate killing. Her character evolved significantly following the Cell Saga, marrying Krillin and raising their daughter Marron. This familial role shifted her priorities, though she maintained combat readiness for financial incentives or planetary threats. Fighting for Universe 7 in the Tournament of Power, she demonstrated strategic acumen by defeating Universe 2's Ribrianne. She sacrificed her own tournament position to ensure Android 17 remained, directly contributing to his eventual victory. During the confrontation against the Red Ribbon Army's new androids and Cell Max in *Dragon Ball Super: Super Hero*, Android 18 arrived with Bulma, Krillin, Goten, and Trunks as reinforcements. While her direct combat against Cell Max was limited, her participation supported the collective effort to neutralize the threat. Her relationship with Krillin remained central, influencing decisions like motivating his training resumption. She also pragmatically sought gifts for him, attempting an unsuccessful wish with the Dragon Balls. This pragmatic personality persisted, balancing familial responsibilities with situational combat engagement.