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Pest control company, Namidome Industries, receives a new helper robot along with a new pilot for it at a critical time. But what exactly are these so-called "pests" they are tasked with exterminating?

Namidome's history as a construction company brings them under fire from the local Builders Union, which fears the competition they might represent. To relieve the pressure, they'll need to undergo a full rebrand.

Tetsuro makes a terrible mistake that could threaten the very existence of Namidome Industries. More information about the islanders' plight comes to light, while Tajima pursues the mystery of the toxic gas.

Arumi's late-night run-in with a smaller "pest" on Ryugan Island raises a number of questions on the true nature of the Giant Beasts and reviewing footage captured by Bullbuster reveals something startling.

While a Shiota Chemical offer to send the company a college-educated intern leaves Tetsuro feeling threatened, a brave move by a young researcher may be the break they need to learn what the Giant Beasts really are.

The new intern arrives but immediately starts getting the backs up of the rest of the team. Meanwhile, the mouse released by Tetsuro on Ryugan Island re-emerges in an altered state.

The Giant Beast that was formerly Arumi's pet dog turns out to be less dead than it first appeared. With it running amok in Shiota Bio's HQ, can the team neutralize the threat before things get even more out of hand?

With the company modernizing more and more, old hand Muto feels like things were simpler before all the high-tech machines and smartphones. But with the bigwigs looking to throw extra funds at Namidome, will this stick-in-the-mud prove to be a hindrance?

As the finer points of the prospective merger between Shiota and Namidome Industries get hammered out, a potential root cause of the giant beast mutation is finally discovered.

Following the bombshell about the potential origins of the Giant Beasts, each member of the team grapples with what to do with the info. Will they simply stay quiet and let the merger happen as planned, or will their desire for the truth win out?

After the collapse of the merger between Namidome Industries and Shiota, it seems like Namidome's days are numbered. That is, until a man representing another company shows up with an interesting proposal...

Standing up for the little guy against big business, Namidome Industries declares war on Shiota Chemical and sets about ridding Ryugan Island of the Giant Beasts as well as the bacteria that has been causing the animals to mutate.