As Akane, Kogami, and Shuusei enter the Nona Tower, Makishima intends to act as a diversion at the top of the tower while Guseong reaches the core of the Sibyl System in the hidden basement. Kogami and Akane decide to chase after Makishima to the top of the tower as Shuusei descends to the basement. After descending to the hidden basement, Shuusei has lost connection with the network and discovers the truth behind the Sibyl System. Meanwhile, Kogami engages in a battle with Makishima. Makishima beats Kogami but is knocked out by Akane. Kogami instructs Akane to kill Makishima but Akane was able to control her emotions. Meanwhile, Shuusei defeats the guards and confronts Guseong at the heart of the Sibyl System, who is suddenly killed by Kasei, who is revealed to be a cyborg and proceeds to override her Dominator to fire at Shuusei.

As Makishima works on reprogramming the virus, both Kogami and the MWPSB arrive at the factory, with Kogami instructing Akane that they need to shut down power to the facility to bypass the security. Prior to arriving, Akane manages to convince the Sibyl System to keep her Dominator on Paralyzer mode with the safety unlocked regardless of Crime Coefficient to use as a trump card against Makishima and Kogami. After the power is shut down, Kogami sneaks into the facility whilst Akane and Yayoi head to the control room in case Makishima attempts to activate the emergency power. Finding the control room empty, Akane comes to realise that Ginoza and Masaoka are in danger. As Ginoza becomes trapped under a container after tripping up a trap, Masaoka comes face to face with Makishima. Although Masaoka appears to get the upper hand, Makishima threatens to blow Ginoza up with a stick of dynamite, with Masaoka ultimately sacrificing himself to save his son.