Gargantia on the Verdurous Planet (Original Japanese Version)

Ensign Ledo is a Machine Caliber pilot in the Galactic Alliance of Humankind, fighting a seemingly endless war against the Hideauze out in the far reaches of the galaxy. But after an accident during the latest battle...

The armed standoff between Ledo and the inhabitants of Gargantia comes to a head, and he learns the truth about Earth's current state. But just then, a distress call comes from Bellows's salvage ship!

After Chamber wipes out all of the pirates that were threatening Bellows and her crew, Ledo is perceived as a menace and kept under guard by the crew of the Gargantia. Meanwhile, Empress Lukkage's pirate fleet is racing towards...

In order to pay back the damage to the hangar they caused, Chamber is put to work hauling heavy cargo, but that leaves Ledo on the sidelines on stand by. Amy takes him around the fleet and introduces Ledo to...

Amy tries to help Ledo find a job and introduces him to a number of different industries aboard Gargantia, but he's just not able to land one. Then the wind dies down and the waves cease, making it a "Calm Day," where the fleet...

When Gargantia intersects with a Milky Way, it means there'll be a fishing bonanza, which also leads to a big festival. Ledo finally gets his chance to catch fish underwater in a Yunboro, but he's unprepared for the job...

When Ledo has an encounter with a whalesquid undersea, he attacks and kills it because of its similarities to the Hideauze. Little does he know that whalesquid are considered sacred, and killing one is taboo...

On his deathbed, Fleet Commander Fairlock entrusts Ridget with Gargantia. Meanwhile, Chamber finally gets a fix on the location of the Galactic Alliance, but they're so far away that Ledo will never be able to get home...

Ledo and Chamber go deep sea diving to exterminate Earth's Hideauze. After an intense battle, they discover a Hideauze nest at the bottom of the sea, and inside, ancient video footage showing the Earth's former civilization...

Ledo is in a state of shock over the revelation of the Hideauze's origin, while Chamber is unperturbed and seeks to continue their mission to slaughter them. Meanwhile, power quickly goes to Pinion's head...

Ledo is elated to learn that his commander, Kugel, is not only alive and well and on Earth, but leads an entire fleet. But the Kugel Fleet seeks to assimilate Flange's Fleet... with Pinion's help! Unaware of this, Ledo eagerly rejoins...

The horrors of Kugel's Fleet become even more apparent to Ledo, Pinion, and the others. Even worse, Kugel's next target for assimilation is Gargantia! Ledo is faced with a choice: loyalty to his commander and to the Alliance or...

To save Gargantia, the outclassed Ledo and Chamber have to defeat Striker by any means possible. It seems the only choice is for Ledo to merge with Chamber to boost its power, but the process will kill him...