With a drone delivering him a Dominator, Kogami manages to outwit Senguji and kill him, although he also takes some shots in the process. Just then, Yuki is captured by Makishima, with Kogami too weak to follow. As Masaoka tends to Kogami's injuries, Tsunemori goes alone to pursue Makishima. To her shock, she discovers her Dominator is useless against him as his Crime Coefficent levels are too low, with Makishima attributing his murderous intent to his own free will. He gives Tsunemori the opportunity to try killing him with Senguji's shotgun, but she finds herself unable to do it and is forced to helplessly watch Makishima kill Yuki right before her eyes.

Taking place three years prior to the series, the episode focuses on Yayoi, who was a guitarist in a band before being imprisoned in a rehabilitation facility for being a latent criminal. As she anxiously waits for release so she can play the guitar again, she is approached by Kogami, who was still a detective, and Ginoza about a series of crimes occuring in the area she was once familiar with. She initially rejects their offer until Kogami gives her some guitar strings which reminded her of a guitarist she admired, Rina Takizaki. When the club they are investigating gets set on fire after Kogami's partner Mitsuru Sasayama jumps the gun in approaching culprits dealing with molotov cocktails, Yayoi decides to search for Rina, only to discover she is part of a resistance group selling the molotov cocktails in the hopes of overthrowing the Sybil system.

After Makishima is taken in and the riots are brought under control, Kogami remains curious about how Makishima will be judged, as well as the whereabouts of Shuusei. Later that day, Kasei tells Ginoza that Makishima's case has been taken out of the MWPSB's hands and orders him to investigate Shuusei's whereabouts, much to the ire of both Ginoza and Kogami. Later, Makishima is confronted by Kasei who reveals herself as Kouzoborou and shares a cybernetic body with Kasei. He explains to Makishima about the true nature of the Sybil System, which is revealed to be a supercomputer network comprised of human brains of criminally asymptomatic individuals like him. Kouzoborou offers Makishima to become a part of the System. But he refuses and instead kills Kouzaborou and escapes from the transit which is supposed to take him to the Ministry of Welfare before briefly contacting Kogami about his escape.