Darling in the Franxx is a Japanese science fiction anime series set in a post-apocalyptic world where children are raised in plantations and trained to pilot giant mechas known as Franxx to defend humanity against mysterious creatures called Klaxosaurs.
The story follows a group of children known as Parasites who pilot the Franxx and their struggles to understand their purpose and relationships. The main characters, Hiro and Zero Two, form a unique bond as they uncover the secrets of their world and the true nature of the Klaxosaurs.
As the Parasites face challenges both in and out of battle, they must confront their own fears and desires while navigating complex emotions and alliances. The series explores themes of identity, love, and sacrifice as the characters fight for survival and search for meaning in a harsh and unforgiving world.