Zero Two (ゼロツー, Zero Tsū) is the main heroine of DARLING in the FRANXX. Zero Two is a human-klaxosaur hybrid and a member of the APE Special Force, making her an elite Pistil. She is currently based in Plantation 13 under priority surveillance. She and Hiro are in a romantic relationship.

Zero Two and Hiro are the newest members of Squad 13. The pair pilot the most powerful FRANXX, the Strelizia.