Zero Two

Since childhood, Zero Two had been alone due to her Klaxosaur blood, always being seen as a "monster". The way people treated her as a child made her lose faith in people which is especially seen when she was a child: being very defensive or aggressive when people tried to interact with her. Besides that, Zero Two acted like a wild animal or a feral child, eating with her hands, growling, making other vocal noises instead of speaking and chasing after mice that were near her. However, Zero Two was also shown to a fairly cheerful, curious, and happy girl, and it was during her time with Hiro that shaped much of her personality and quirks in the present, such as her sweet tooth, the way she referred to herself as ("Boku"), and the nickname she had for Hiro, "Darling". Because Hiro treated her as he would anyone else, whereas others didn't treat her as a human for one reason or another, Zero Two developed a deep admiration and liking towards him. Despite having her memories of the darling from her childhood erased, Zero Two retained some fragmented memories which was why she strived to become human no matter what. As she grew up, Zero Two's personality was rumored to be dangerous, cold, and alluring. She was an elite pilot with the pseudonym "Partner Killer", given the mysterious cases of her co-pilots dying after only three sorties FRANXX rides. However, she appeared to be playful towards Hiro and sometimes showed humor; which is evident during their first meeting, in which she teased him and called him a "pervert". However, she prioritized her duty as a Parasite more than anything, not because she wanted to protect Papa and the others, but because she wanted to "become human". Her outlook on life was quite cynical which is why she didn't bother with a name since they were all meant to fight and die. She had also been a prized military asset of APE and sent to fight on the front lines for so long that she had no regard for human life or her own since they all would become a statistic when they died anyway. When people around her died, she hardly batted an eye at it because, to her, it was just a fact of life that everyone dies. Zero Two always kept people at arm's length with mocking humor, nihilism, and emotional detachment. Zero Two also freely talked about how much she hated their society. However, after seeing Hiro's determination to pilot with her, Zero Two noted that they were very similar and she invited him to partner up with her, despite having fought alone during the majority of her life and never leaning on others for support. thumb|left|Zero Two's sweet tooth, and smug and rebellious attitude. It is later seen that Zero Two was a very unruly, passionate, fierce-tempered, self-confident, smug, assertive, and carefree girl who hated to follow the rules set up by the adults. She was very outspoken and honest, and unlike the other Parasites, she did not care about Papa and held no respect for him and the other Sages, only seeing them as people who lied to her throughout her childhood. Her seemingly care-free rule-breaking helped break Hiro out of his crippling depression and blind adherence to rules, and the cheerful affection she showed him inspired some of the other Squad 13 Parasites to be more affectionate with each other. Zero Two's behavior was also quite childlike, as evidenced by when she wiped her hands on Zorome's uniform. Zero Two also demonstrated impressive agility, performing somersaults and flips then landing on her feet every time. During the Girls vs Boy feud, Zero Two tricked the girls into believing she would cooperate with them, after which she tricked the boys into walking in on the girls while they were bathing, then proceeding to steal both the boys' and the girls' clothes. While being chased by Hiro, she teased him and laughed while running throughout the house. By doing that, she felt just a little more like a human. While an exceptionally gifted parasite, Zero Two also had extremely odd quirks: being a sloppy eater who uses her hands, often licking people, such as herself, though she didn't like how she tasted; Hiro, who tastes like danger; Ichigo, who tastes sweet; and Ikuno, who tastes like a secret. She also often mused about how she wanted to go in the ocean, dousing her food in honey, and having no sense of personal space. It was also implied that she knew more about the outside world than the other members of Squad 13. She also appeared to be more knowledgeable about different things than the others, as she knew what a "kiss" was, what came "after kissing" and the meaning behind "love". She also urged the Parasites to speak up for themselves and do what they think is right before they regret it and before "it's too late". Zero Two also clearly didn't mind whether she's wearing clothes or not, judging how she didn't even bat an eye about Hiro seeing her naked and instead picked on him for holding her panties. However, soon after, Zero Two became more obsessed t...

As a child, Zero Two looked much more like a monster, with red skin, long sharp nails, and fanged teeth. While her eye colour was the same, her sclera was red instead of white. Her horns were also much larger in comparison to her head, and her hair was a lighter shade of pink. In terms of clothes, all she was given was a dark grey cloak and white wrappings from Hiro that substituted for shoes. left|thumb|Zero Two's appearance. Growing up, Zero Two developed a fair complexion. She had a slender and athletic figure; she was the tallest girl in the squad and even taller than most of the boys as well. She had waist-length, long pink hair with straight bangs covering her forehead and a pair of red horns on her head and a white limiter headband over her horns. She had sharp, turquoise eyes with rings around the pupils and pinkish-red markings on the canthi. Zero Two's full ensemble was composed of a white military cap with matching overcoat and boots. She was often seen wearing her signature red military uniform, black leggings, and white boots. Zero Two's originally wore the 9's pistil suit: a red bodysuit with white accents. After being assigned to Squad 13, she adopted the squad's standard Pistil uniform: a white bodysuit with red accents. As side effects of aggressively riding Strelizia, Zero Two's fangs and horns can grow at an alarming rate. Her eyes shine red when angered, even while wearing her limiter headband. It once got to the point when her face was deathly pale and her eyes blood red. Her horns could also branch out to the point of being able to touch the ceiling, and her skin color could also revert back to her original red color. In Episode 17, Zero Two was given a flower headband by Miku, which was worn for the rest of the episode. In Episode 21, Zero Two removes her limiter in order to save Hiro, which causes her skin to turn red similarly to her as a child, and her horns to grow and stretch across the room similarly to tree branches. thumb|right|Zero Two - Strelizia True Apus. In Episode 23, Zero Two merged with her FRANXX and transformed into Strelizia's True Apus form. In this form, its faceplate was replaced by Zero Two's face, in which she appeared with more pronounced lips and pinkish lip color. She had a white helmet with red lines with a blue horn-like weapon on top of it. There was also a veil-like sheet of light behind Apus' helm. Strelizia True Apus' legs changed into a semblance of a white, shoulder-less, and bare-back dress with green accents. In one of the MATO comics, Strelizia True Apus is considered to be Zero Two's wedding dress.