Ep. 19: Kaito and Akiho confront Misaki's sabotage while uncovering Kimijima's global conspiracy and immortality plot.

After Misaki attacks the expo using a Sumeragi robot, Kaito tackles him while Akiho pursues the culprit. Akiho suffers an EMS seizure as the Sumeragi destroys GunBuild-2, prompting Kaito to protect her. They discover an obelisk, identified by Akiho as a space elevator from a leaked Gunvarrel episode. Sawada explains the structure was hidden by NoAH's Ark AR technology and that the solar flare news is propaganda for Project Atum. Misaki plans to launch black hole bombs from SERN at Tanegashima to create a magnetic storm. Sawada reveals Kimijima orchestrated the Kimijima Reports distraction and uses Misaki as a puppet. Kaito resolves to fight Misaki again, cheering Akiho. Meanwhile, Kona learns about her mother's death and is rescued by Nae, Sawada's ally. The group travels to JAXA's Chofu Airport but is stopped by a brainwashed Airi. Kaito sees Kou Kimijoma on his Poke-Com, who claims to have achieved immortality via the Iru-O network.
Episodes
- Ep. 15 · Airi's Digital Existence and Kaito's Discovery of Her True Origin
- Ep. 16 · GunBuild-2 Activation Test and Mizuka's Tragic Exoskeleton Malfunction
- Ep. 17 · The Robot Research Club is Hereby Disbanded!
- Ep. 18 · Kaito and Akiho attend the Tokyo Expo while Misaki promotes the Exoskeleton robots.
- Ep. 19 · Kaito and Akiho confront Misaki's sabotage while uncovering Kimijima's global conspiracy and immortality plot.
- Ep. 20 · Mitsuhiko streams Kimijima's confession regarding Misaki's past and Project Atum while the team prepares GunBuild-1.
- Ep. 21 · Kaito Seizes While Akiho Completes the Super GunBuild-1 and Confesses His Love
- Ep. 22 · Kaito battles Misaki while Kimijima hijacks her Sumeragi and threatens a missile launch.