Appearing a third time, Monster No. 9 split into two and toyed with the defense force. Kafka and Kikoru join forces to fight, but they are forced to defend against Monster No. 9, which evolves during the battle, and Kafka fails to transform into Monster No. 8. Kikoru, who is in a difficult situation, remembers a promise he made to his late mother, Shinomiya Hikari. Meanwhile, Narumi is engaged in a fierce battle with the other Monster No. 9.
Show: Kaiju No. 8
In a world plagued by creatures known as Kaiju, Kafka Hibino aspired to enlist in The Defense Force. He makes a promise to enlist with his childhood friend, Mina Ashiro. Soon, life takes them in separate ways. While employed cleaning up after Kaiju battles, Kafka meets Reno Ichikawa. Reno's determination to join The Defense Force reawakens Kafka's promise to join Mina and protect humanity.
The Next Generation's Trial
A challenge begins for the next generation of the Defense Force.
Episode 14
Kaiju Weapon
Kafka goes on a mission with his new squad and faces Kaiju No. 9 once again.