

A drunkard witnessed a murder by an Unidentified Lifeform near a Church. Meanwhile, Yusuke is bothered by the idea of fighting and is unsure if it was right until he saw the daughter of one of the slain archeologists crying.

In the battle against Unidentified Lifeform #6, Zu-Batsu-Ba, who had been appearing frequently in the Suginami ward, Kuuga's body changed from red to blue...

Three months have passed since the series of events with the Unidentified Lifeforms broke out.

Kuuga fights the squid-type monster Me-Giiga-Gi but his attacks are absorbed by the monster's pliant body and he suffers its counterblows, leaving him in critical danger.

For the moment the case of Unidentified Lifeform #24 is solved.

Recently Yusuke has noticed a shocking sensation like an electric current rippling inside his body while he fights Unidentified Lifeforms, and to solve this mystery he asks Sakurako to decipher more inscriptions

In the face off with Unidentified Lifeform #36, praying mantis-type monster Me-Garima-Ba, Kuuga fights with the TryGoram but its knockout attack doesn't work on Me-Garima-Ba.

It's a day during the summer. Yusuke and Sakurako tend the shop while the owner, Nana, Minori and Minori's coworker Ayako go out to a pool.

During a discussion between Yusuke, Ichijo and Tsubaki, they confirm that Kuuga's golden power is produced by the magical artifact inside Yusuke's body, the Amadam, in response to his intent to want to become stronger.

With the golden power of his red form, Yusuke defeats Unidentified Lifeform #39, shark-type monster Go-Gamego-Re but the media and police department emphasize that the enormous damage caused by #39's giant explosion was due to #4's independent actions.

The TryChaser2000 is forced to finally be retired due to the metal fatigue of combining with Goram and the battle with grasshopper-type monster Go-Badaa-Ba.

Sakurako studies the letters drawn in blood that were left at the scene of Unidentified Lifeform murder cases, and tells Ichijo who has arrived in Nagano that those letters were originally of the Gurongi alphabet.

Ichijo is injured by the woman with a rose tattoo and taken to Kanto Medical University. Thinking he has to do his best on Ichijo's behalf as well, Yusuke ruminates on the rules of Unidentified Lifeform #43 Go-Zazaru-Ba's game.

Unidentified Lifeform #45, buffalo-type monster Go-Baberu-Da appears, and a massacre larger than any others so far unfolds throughout the city.

Yusuke has been trying to enhance his golden power even further for the fierce battle with #0 he expects to have, and just then becomes able to control that golden power to defeat Unidentified Lifeform #46, rhino beetle-type monster Go-Gadoru-Ba.

To defeat the one who brings the ultimate darkness, N-Daguba-Zeba, Yusuke transforms into the Ultimate Form, the dreadful warrior. Staining the brilliant white snow field with crimson blood in this literal fight to the death, at last the conclusion is reached.