The robots attack the ship and Jin, Kleene and Laguna have to defend their new allies. Meanwhile, on the planet, Shiki and the others are confronted by Poseidon Nero, who has been ordered to eliminate all robots.

With Laguna's help, Shiki and the gang obtain a hint for finding Mother and leave Red Cave towards the Verdant Planet Foresta. Meanwhile, Elsie's pirate gang, cruising through the Aoi Cosmos on the Skull Fairy, are being pursued by Justice of the Cosmic Government's Interstellar Union Army.

Within a temple adorned by reliefs of Mother, Shiki and the group meet Nadia, the temple's guardian. They hear from Nadia that the far end of the temple contains hints to finding Mother, but as they venture deep into the temple, they find a scorching cave…

Shiki and the gang get through Dragonfall and arrive at the Aoi Cosmos, which is ruled by Poseidon Nero of the Oración Seis Galáctica, and land on a fire planet, Red Cave, at the suggestion of Witch. The planet is overflowing with Water Ether, and is an environment that is a far cry from a "fire planet" covered by the ocean. As the Edens Zero crew enjoy a brief vacation at the ocean, they discover a town beneath the waters...!

Edens Zero is cornered by Edens One and Shiki and the crew are saved at the nick of time by the space pirate Elsie Crimson. After the battle, Elsie boards Edens Zero and talks to Shiki about something Ziggy had asked her to do a long time ago.

Before they venture beyond the cosmos in search of Mother, the Goddess of the Cosmos, Edens Zero visits Granbell at the request of Shiki, where he has an unexpected reunion.

"You've lived enough, time to sleep," says Shiki, who has reached Overdrive and defeated Drakken Joe. However, Weisz's anger does not subside, and he stands over and points his gun at the barely alive Drakken Joe.

The fierce battle between Shiki and Drakken continues. Drakken activates his Overdrive to overwhelm Shiki, but suddenly Arsenal appears!

Shiki and the gang grasp a secret clue about Drakken Joe. As they discuss strategies for their next course of action, they notice that something is wrong with Labilia… Suddenly, Drakken Joe appears, sensing an Ether reaction. A head-to-head battle between Shiki and Drakken finally begins!

Changing into her Battle Dress, Hermit fights off the Element 4 sniper, Fie. Sister fights Daichi of Earth, Homura battles Sylph of Wind, and Witch stands against Laguna of Water. Meanwhile, Shiki and his gang push forward toward Drakken's hideout.

As her Ether Gear powers are activated, Rebecca goes back in time to before the Belial Gore infiltration and offers information to Shiki. Master Noah appears in front of Shiki and the gang, as they arrive at Drakken's hideout and says that he has a message for Rebecca.

Rebecca is devastated by Shiki's death and Drakken Joe finally explains to her in detail what it is he wants to extract from her. Apparently, she has a very particular Ether Gear.

Although Shiki and Homura want to deliver medicine to Weisz as soon as possible, they struggle with the attacks from Sylph of the Wind and his assistant, Jinn.

Although Rebecca and Happy go into Belial Gore to deliver medicine to the injured Weisz, they are found by the Sylph of the Wind and captured. Shiki, Homura, and Pino receive Rebecca's communications and go to the loading docks, only to find that Rebecca is not there and in her place is the Element 4 Sylph and another "surprising" individual.

Within the Belial Gore, Weisz dons an Arsenal suit in his fight against the Element 4 Spirit of Water, Laguna. However, he finds it difficult to gain the upper hand due to Laguna's various water attacks.

Shiki and his gang believe they have successfully infiltrated Belial Gore, but Drakken Joe had been aware of their every move and sends out his elite military force, the Element 4, to take down Shiki's group.

After defeating Madame Kurenai and leaving the planet Sun Jewel, Shiki and his comrades continue their journey and attempt to infiltrate Belial Gore, the enormous urban-type battleship of Drakken Joe, who has been targeting Edens Zero.

After the battle between the Kurenai Dragoon and Shiki comes to an end, Shiki and the others return to the Edens Zero and have to share some bad news.

Baku is easily defeated, thanks to Weisz’s Arsenal suit. While Shiki battles the Knight Gear controlled by Madame Kurenai, Rebecca fights Nino.

Shiki and the others confront Madame Kurenai. Homura is overwhelmed with sadness when she sees Valkyrie, while Drakken Joe hacks into Oculus Kurenai.

When Homura was a child on a war-torn planet, Valkyrie took her under her wing and raised her like her own.

Nino leads Rebecca, Pino and Happy to the labor zone where they meet a man named Paul, who tells them he’s Valkyrie’s disciple.

Shiki and Homura find themselves in a labor zone where they’re forced to gather valuable metal for a figure known as Madame Kurenai.

After obtaining the information they needed from Xiaomei, Edens Zero sets course for the planet of Sun Jewel to reunite Homura with her mentor.

At Battle Coliseum, Xiaomei tells Shiki and the crew that she’ll give them the information they want — but only if they can defeat their opponents.

To find the fourth member of the Demon King’s Four Shining Stars, Shiki and the crew head for the Planet of Time, Mildian.

Spider hacks into Edens Zero’s system and starts to destroy the ship from the inside. The only one who can stop him is Hermit.

After Homura declares that she’s joining Drakken Joe, Shiki and the crew are shocked when another Homura suddenly appears.

The crew enters the virtual planet of Digitalis to search for Hermit, but when they find her, she stubbornly refuses to return to Edens Zero.

After finding Hermit on Iron Hill, the crew deduces that she’s in an abnormal sleep mode as a result of her heart being broken.

Witch and Sister Ivry finally reunite, and Homura reveals her true motivations for coming aboard Edens Zero.

As the chronophage moves ever closer to Planet Guilst, Shiki is disgusted to see Sister use Jinn as a shield. Then, another Sister appears!

Homura uses her Soul Blade powers to fight off Sister's men. Meanwhile, Rebecca plans her escape from Illega Tower.

While Shiki and the others rush to rescue Rebecca, Weisz returns to Edens Zero along with a woman named Homura.

Witch informs Shiki that he is now the master of the Edens Zero. She further explains that the ship has not yet returned to its full power.

After boarding the pirate ship Skull Fairy, Shiki makes his way to the bridge to confront Elsie Crimson and fight her for the vessel.

While Shiki and the gang struggle to fly Aqua Wing off of Norma, Weisz suddenly appears and offers to help — but he wants something in return.

Shiki and the gang break into Sibir’s hideout to get Pino back, but Weisz takes advantage of the chaos to try and take Pino for himself.

On the planet Norma, where time is 50 years in the past, Happy and Rebecca meet a young Professor Weisz, who long ago saved Happy’s life.

Shiki loses his cool when famous B-Cuber Labilia makes fun of Rebecca’s inferior B-Cube channel. Then, Shiki gets his official adventure license.

On their way to Blue Garden, Rebecca encourages Shiki to get his adventure license. She also asks him to be a bodyguard for her and Happy.

Rebecca Bluegarden visits the nearly deserted Granbell Kingdom. There she meets the sole human inhabitant, Shiki, who wants to be her friend.