Ep. 21: Kaito Seizes While Akiho Completes the Super GunBuild-1 and Confesses His Love
Kaito, Nae, and Airi visit Kimijima’s lab to retrieve data from a device given by Sawada, but Kaito suffers a seizure upon activation. Armed droids controlled by Kimijima and Sister Centipede attack them, though Sister Centipede forces the droids to destroy each other before Kimijima erases her. Meanwhile, Akiho finishes modifying the GunBuild-1 into the Super GunBuild-1 and reunites with Ken'ichirō before learning of Kaito’s condition. Despite his injuries, Kaito insists on piloting the Super GunBuild-1, claiming the device allows him to trigger his Slow-Mo ability at will to fight the Sumeragi. Akiho opposes this, fearing the device could kill him, but Kaito promises it will help her meet Misa again. On the mission day, Kaito confesses his love to Akiho and kisses her before departing in the Super GunBuild-1.
Episodes
- 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.