Zero Two & Hiro

Zero Two:-
Zero Two (Japanese: ゼロツー, Hepburn: Zero Tsū), also called Code:002 (コード:002, Kōdo:002) and 9'℩ (ナインイオタ, Nain Iota, "Nine Iota") is a fictional character in the Japanese anime television series Darling in the Franxx by A-1 Pictures, Trigger, and CloverWorks.[9] She was designed as the most prominent character and icon of the series. Zero Two is an artificially-created life form who aspires to become fully human, and an elite pilot with an infamous reputation as the "Partner Killer". She is well known for addressing Hiro, the protagonist, by the eponymous term "darling".

Hiro:-
Hiro (ヒロ, Hiro) is the main protagonist of DARLING in the FRANXX. He was a Parasite with the codename "016" and was once known as a prodigy among the Children. However, he failed to synchronize with his partner Naomi and was considered nothing but a failure as a pilot. As a result, he did not know where he belonged and struggled to find his place in the world. However, upon being partnered and piloting with Zero Two, he became an official Parasite and found a new reason to live. Hiro and Zero Two were the newest members of the 13th Plantation, piloting a FRANXX called Strelizia.

Zero Two and Hiro are FRANXX couples who fight alongside against Klaxosaurs. Klaxosaurs' boss is Klaxosaur Queen who is very strong and most dangerous. Zero Two's father's name is Dr. FRANXX, he created Zero Two and Hiro to fight Klaxosaurs and protect humanity. Nana is the mother figure of Zero Two and Hiro who take care of them, and Grace is their mentor. Most sadly, they lost partner 081 during battle against Klaxosaurs, partner 081 got killed by Klaxosaurs.
Zero Two is Klaxosaur Princess, and Hiro is Klaxosaur Prince. Zero Two have pink hair, red horns, red plug-suit, red FRANXX pilot suit, and blueish-green eyes. Hiro have dark blue hair, blue horns, blue plug-suit, blue FRANXX pilot suit, and blue eyes.

Zero Two's birthday is on 27th February 2021.

Hiro's birthday is on 15th October 2021.