With kaiju cataclysms transpiring across Japan, Hoshina heads into battle equipped with Numbers Weapon 10 and soon discovers that wielding the first-ever sentient kaiju weapon won't be easy. Meanwhile, back in the Oizumi area where Kafka is, six supergiant-class kaiju emerge, worsening an already grave situation. But just as things get dire, some unexpected backup arrives!

Kaiju No. 9 shows up to steal the power of Kaiju No. 2, wielded by Isao Shinomiya, director general of the Defense Force. At the end of the deadly battle, Isao manages to get No. 9 on the ropes, but he ends up exhausting all of his strength, allowing the kaiju to steal No. 2's power. With Isao defeated, No. 9 fuses with the director general and takes on Kafka, Kikoru, and Narumi! Will they be able to defeat No. 9 and save their fearless leader?! For teen audiences.

The Defense Force has taken Kafka into custody and plans to dispose of him. To save himself, Kafka attempts to plead his humanity to Director General Shinomiya, wielder of the mighty Kaiju No. 2's power and the person lauded as the strongest in Defense Force history. When Kafka's pleas fail to move the director general, he winds up facing him in combat! Can Kafka keep his kaiju form together long enough to save his own skin? For teen audiences.

Kafka manages to fight off the humanoid kaiju, rescuing Iharu and Reno. But before he can change back to his human form, Kafka's spotted by Defense Force officers, and the neutralization unit-led by none other than Vice-Captain Hoshina himself-is dispatched to dispose of him. Can Kafka withstand his superior officer's attacks without revealing his true identity?! For teen audiences.