While Guy is in critical condition, Mikoto and the employees of the Space Development Corporation fall under the spell of a Zonder Magician.

When the use of Hell and Heaven becomes fatal for Guy, he's forced to used a new tool in his arsenal: The Dimension Pliers!

A battered Guy is forced to face a dark shadow from the past without the help of Hell and Heaven.

The GGG's Secret Base is infiltrated from within, leaving Mamoru and Volfogg to fight their way back in before the base becomes a crater in Tokyo Bay.

Volfogg is forced to break out the big guns when Mamoru and his friends are cornered by an enemy army under the cover of thick fog.

Volfogg is put on high alert when the Zonder target Mamoru at a seaside amusement part. However, the Four Machine Kings actually have another prey in their crosshairs.

After a shocking revelation about Zonder Metal comes to light, both the GGG and Zonderians review their intel while preparing for the next battle.

The Four Machine Kings take control of the Isolde particle collider and the GGG are tasked with saving the scientists taken hostage. In the process, Mamoru discovers he has an ally watching over them from the shadows.

The GGG scramble to save Mamoru and Hana after the pair is suddenly trapped inside of a Zonder-controlled submersible heading for the ocean floor.

While on a field trip gone wrong, Mamoru has a chance encounter with the mechanical lion that delivered him to his parents eight years earlier.

Natsuki happens to see Atri's log that was left open. What was written there was an emotionless record of how she carried out her actions to fulfill Natsuki's desires. Natsuki instinctively rejects Atri and is no longer able to trust anything. Meanwhile, a single letter arrives, and inside there is a report describing the truth behind the Humanoid called Atri.

Natsuki has been acting strange and seems to have his head in the clouds through everything he does. After being interrogated by Minamo and the others, he reluctantly confesses to them that he kissed Atri in the ocean.

Was Natsuki's first love, Atri? His beautiful childhood memories are gradually being overwritten. Despite his unwillingness to admit it was her the facts around him are lining up to force him to, but he continues to deny it.

Natsuki's life experiences a big shift after becoming a teacher and starting a salvaging service. Rumors of a school lit with electricity attracts new students, and activities around the school regain a sense of liveliness.

If Natsuki sells Atri, he can get batteries. However, he can no longer think of Atri as just an average humanoid. While he's deep in thought on the dock, looking out at the ocean, Natsuki finds Catherine floating in the water. She is completely intoxicated, and Natsuki and Atri take her in. But right at that time, the sound of a gunshot echoes within the silent ship.

Natsuki sets his heart on creating a tidal power generator that utilizes the ebb and flow of the ocean's tides. He dives back into the ocean to find some materials and salvages some resin from the ruins of Ryuuji's family's factory. As soon as he gets back he gets to work. As they are working, Natsuki and Ryuuji exchange heated opinions over how the generator should be built. Atri intervenes and the two guys become closer friends. Meanwhile, a suspicious-looking character peeks at them from outside of the school....

Natsuki accompanies Atri who is on her way to school. However, when they arrive, they find that most of the school is underwater. Although they managed to get into the school building, inside it was full of empty classrooms and an unexpected teacher. There, Natsuki is faced with the saddening reality of the lives of the people who remained in their town.

"I'll be your leg, Master!" Atri, who was supposed to be with Cathrine, has come back to Natsuki. Although she was pumped to be of assistance to her new master, she fell into the ocean while carrying him and failed at cooking… It's as if she is a piece of scrap. Atri seems to have received a very important order from Nonko and tries to remember what it is, but...

Only three days remain. Atri decides to become a part of Eden's system, and the clock ticks on for Natsuki who decides to spend his life looking for a way to save Atri.

Atri's last order that was given to her by the capsule was to go to Eden. However, Natsuki and the rest are perplexed by the incomplete set of instructions and don’t know where to even start looking.