"Darling in the Franxx" is a Japanese anime series set in a post-apocalyptic world where humanity is threatened by giant creatures known as Klaxosaurs. To combat this threat, young pilots operate giant mechs called Franxx, which require a male and female pilot to work together. The story primarily follows Zero Two, a skilled pilot with a mysterious past, and Hiro, a boy struggling to find his purpose. The series explores themes of love, identity, and the challenges of growing up. As the characters navigate their relationships and battles, they confront their fears and desires, ultimately seeking to understand their roles in a world filled with conflict and uncertainty.