With the looming threat of a cataclysm induced by No. 9, the next generation of the Defense Force takes steps to prepare. Reno undergoes training and becomes the first compatible user of No. 6 in history. Kafka sharpens his skills by learning squadron-style combat techniques under Hoshina's tutelage. Meanwhile, Kikoru gets clearance from Narumi to inherit a powerful memento that once belonged to her mother.