Season 1

Nene is a rare full-body cyborg who moves to Cenancle Island to live with her aunt. But on her way there she meets Uzal and Clarion, and their friendship makes for big adventure when an apparent terrorist attack suddenly occurs on the island!

Uzal's excavation machine BUER is going berserk, and only the combined efforts of Nene and Clarion will be enough to stop it. Even if the plan works, BUER has already done so much damage to the city, there'll be hell to pay once it's all over.

After a considerable detour, Nene finally meets her Aunt Takumi for the first time. This is where she and Clarion will live from now on, but it turns out that appearances can be deceiving.

Nene's new school gives her a homework assignment to go observe people working at their jobs. Takumi sees this as a great chance to get the house all to herself, and find out what makes BUER's Central Nervous Unit tick.

Nene ponders whether it's right for her to rely on the Pandora Device. Meanwhile, a network disturbance on the island creates the chance for she and Clarion to have some adventure and make a few new friends along the way.

When Nene goes to the hospital for maintenance, BUER's Central Nervous Unit embarks upon a little adventure of his own with his newfound friend Amy. Amy needs all the help she can get in tracking down her kitten that's loose in the hospital.

A gang of robot thieves has been taking advantage of the recent network outages to steal androids off the street and sell them to the highest bidder. Could they be in over their heads when they set their sights on Nene and Clarion?

A fire starts during a network disturbance, and now Nene and Clarion are trapped in a department store inferno. And as if that weren't bad enough, the island's government chairman and his secretary are trapped along with them!

Clarion deduces that the department store fire was caused by BUER, which means someone is trying to tamper with it. She and Takumi team up to storm the American Imperial forces in the geofront, and see to it that BUER is no longer such a loose cannon.

Clarion fights an intense battle against Kurtz's hulking bodyguard. Meanwhile, Nene struggles with her suspicion that Clarion secretly resents her, and she ultimately decides to go help her friend with her dangerous task.

As BUER strives to defend itself from the multiple parties intent on hacking into it, Nene searches the underground base for Clarion. It becomes apparent that Kurtz has sinister plans in mind for BUER's weaponry, so will anyone be able to stop him?

Clarion's arm was injured in the battle with Fear, but he is confident that he will be fine with Nanaten Fukuin, who has come to his rescue. With the power of Fukuin's Pandora Device, Clarion challenges Fear to battle once again. Fear is on the defensive, but Kurtz orders the limiter to be released. Fear goes into berserker mode. Meanwhile, with the intervention of Konron Hassen Takumi, Kurtz and his men are on the verge of breaking through the barrier on the giant Buel. The final barrier is broken! Soon the giant Buel's mainframe is completely subdued!?