Android 18, Heroes Wiki

Android 18, born Lazuli, is a main character in the Dragon Ball franchise, appearing as a major antagonist-turned-major supporting character in Dragon Ball Z, and a supporting character in Dragon Ball Super. Lazuli and her twin brother Lapis were originally regular humans until they were abducted and genetically modified by the evil scientist Dr. Gero. Reborn as Android 18 and 17 respectively, Lazuli and Lapis became powerful cybernetic warriors created with the intention of killing Gero's enemy

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