Shuta Aoi wanted to become a hero, but after a certain incident, he gave up that dream. One year later, that incident returns to haunt Shuta. In order to face his fears again, he needs to gather his two childhood friends together and reform the RGB. Given another chance, will Shuta be able to confront his despair?

A bomb has been planted on a cruise ship, but RGB are presented with a trolley dilemma again. They have to choose between saving the lives of the VIPs on the ship or the suspected terrorists. Koki insists that they should shoot the suspects to save the targets of the terrorist attack, but Ran has a Vision, where he sees that the real culprit is Kunai, a member of DoRed. Without telling Shuta and Koki, Ran investigates the motive behind Kunai's terrorist attack. What will be the outcome of this trolley dilemma?

Tsuzuragawa is in a coma in the hospital after being saved by Shuta. While tensions grow between DoRed and SARG, Ran investigates what Tsuzuragawa was up to at Cornucopia. Ran meets with his mentor 0th, and hears about his new plan. Meanwhile, during the commotion in Shantytown, Shuta is unsure what to do. At that moment, he sees Kozue being pursued by SARG and goes after them.

The KANAE system has frequently been producing errors. The cause of these errors were due to Asumi's consciousness being awakened inside the system, which confused the system when it was making decisions. Shuta is unable to decide what to do when Tsuzuragawa presents a trolley dilemma to save Asumi. Chikuwa arrives on the scene and they are arrested as terrorist suspects. Meanwhile, Ran and Koki are searching for "CMD," which appears to be the key to saving Asumi. Shuta reveals the truth behind the Takara Elementary School fire accident that killed Asumi.

When the RGB trio decides to go meet Asumi, they receive a call from her. Asumi presents to them a trolley dilemma that involves herself. They must decide between revealing Asumi's existence within the KANAE system which would lead to its collapse, or to fix the bug inside Asumi which would lead to everyone being controlled by the system. The trio are unable to make a choice between the two, and decide to go meet Asumi by any means. What is the future that RGB chooses?