The Parasites gather at the site of the Grand Crevasse for the final battle against the Klaxosaurs. As the others confront a huge army of Klaxosaurs attacking the base, Hiro and Zero Two are tasked to use Strelizia to control the "Star Entity", a massive weapon stored inside the Grand Crevasse. Amidst the battle, Kokoro and Mitsuru are struck with pain for saying their names...