Although Chamber states that he must remain on standby until reestablishing contact with his superiors, Ledo decides to look for a job, but he fails to find a vacant post up to his skills, or willingness. Soon after, the Gargantia stops moving for maintenance, taking advantage of the absence of winds or waves, in an event known as "calm day", with all workers having a free day except repairmen. Despite being a repairman himself, Pinion invites Ledo and Amy, along with her fellow couriers Melty and Saya, for a swim. However, Pinion finds himself unable to cook due to an energy shortage, and sends Ledo on an errand while looking for a way to solve it, while other members of the fleet arrive to join them. Amy and her friends aretasked with an errand to the top of a high tower and they take the opportunity to make it a race. During the race, Amy saves Ledo from being pursued by some transvestite men who intend to hire him, and after the girls' job is finished, they return to the party with Ledo arriving soon after bringing the item Pinion asked him to fetch: a bottle of sauce. Ledo is then informed that Pinion arranged the party to cheer him up, as he did not manage to find a job, and enjoys it with them until the wind resumes and the calm day ends. Amy then accompanies Ledo as he resumes his search for work.

Despite Bellows' pleas, Ledo kills the creature, a whalesquid (クジライカ kujiraika), considered a sacred animal by the Earthlings, and news of its death spread rumors of an impending misfortune towards the Gargantia. While Ledo has Chamber analyze a sample of it, he wonders why it does not attack Humans on sight like the Hideauze usually do and Chamber deduces that somehow both species learned to coexist. Elsewhere, Pinion plans to draft Ledo into his crew with the intention to explore the uncharted whalesquid territory and salvage its treasures, but Bellows tries to dissuade him, and it is revealed that Pinion's ulterior motive is to enact revenge for his deceased older brother, who was killed by them. As Chamber's analysis prove that the whalesquids are indeed similar to the Hideauze, Ledo is determined to exterminate them all, despite Amy and the others' attempts to make him change his mind. When a huge number of whalesquids are seen approaching the Gargantia, Commander Fairlock declares that all of the fleet's machinery and lights must be turned down, to not provoke the creatures as they pass under them. Amy tries to stop Ledo from fighting them, but he does not listen to her, until Ridget points a gun at him, and he is forced to stand down. The whalesquids pass under the Gargantia without any incidents, but while Ledo rejects Amy for not agreeing with him, Fairlock is informed by Pinion of his plan and Flange declares his intention to accompany him with his ship. As both express their intention to secede from the Gargantia, Fairlock tries to dissuade them until he suffers a heart attack.