Darling in the Franxx Volume 3-4

Hiro has only just recovered from his latest battle when the alarm sounds—a Klaxosaur swarm is imminent, and one of them is the largest foe the Parasites have ever faced! Hiro and Zero Two must push themselves to the absolute limits to protect their squadmates and the Plantations. Is Hiro ready, or will Zero Two ride him to death like all her other partners?