Zero Two (ゼロツー, Zero Tsū) is the main heroine and the deuteragonist of DARLING in the FRANXX. She is a human-klaxo Sapien hybrid and a member of the APE Special Forces, primarily fighting on the front lines. Zero Two's personality is rumored to be dangerous, cold, and alluring as she grew up. Her outlook on life is quite cynical, so she didn't bother with a name since they are all meant to fight and die. When people around her fail, she hardly bats an eye at it because, to her, it is just a fact of life that everyone dies. Zero Two always keeps people at arm's length with mocking humor, nihilism, and emotional detachment. Zero Two also freely talks about how much she hates society. It is later seen that Zero Two is a very unruly, passionate, fierce-tempered, self-confident, smug, assertive, and carefree girl who hates to follow the rules set up by the adults. Character Background (Major Spoilers):

Belonging to the fierce tribe of the Fanalis, descendants of the red lions originating from ''Alma torran''. She is inspired by Morgiana from the Thousand and One Nights, the intelligent slave who served Alibaba in ''Alibaba and the Forty Thieves''. Morgiana was the slave of Jamil, a young man obsessed since childhood with the idea of being king, who controlled her through mistreatment, gaining her loyalty through fear. Due to this mistreatment she became unfriendly, avoiding to show her emotions openly in order not to get into trouble. But after Goltas, another of Jamil's slaves, made her rethink the idea of no longer being a slave, she opted to leave the dungeon to return to her home of origin, the dark continent, to meet her own. Thanks to this new journey she undertook with her friends, Alibaba and Aladdin, she was able to start being herself, showing her true character and personality little by little. Although she looks like a normal girl, she can get closer with an enemy far away in an instant. In addition to her strong leg strength which can even enable her to vertically run up walls, she has a keen sense of smell on par with that of a dog's, can also smell the stench of death emanating from the bottom of the pit and the smell of someone hiding in unseen places. Although weaker than her leg strength, her arm strength is strong enough to send a human like Alibaba flying. After Alibaba's departure from Qishan, she put the words of her defector, Goltas, on her chest, and started a journey to her hometown, Katarg. In the middle of her journey towards Balbadd, she helped Leila and Sahsa's caravan to eliminate the thieves at the rock quarry. She reunites with Aladdin after that, and then joins Alibaba again in Balbadd. The name Morgiana (مرجانة) means coral in Arabic.