The entirety of Judgment joins Kuroko and the others in fighting off against STUDY's mechs. Meanwhile, Mikoto and Febri arrive at STUDY's hidden base at a stadium, fighting off against the mechs Aritomi sends against them. STUDY responds by sending a signal to cut off everyone's communications and sending more advanced mechs after each group. However, they overcome this thanks to Erii and Banri setting up a network of telepaths, with Kazari and Ruiko piloting their own mech that Mitsuko's father sent over and ITEM helping to destroy the mechs sent after Mikoto. Mikoto and Febri soon arrive at the underground base, where Aritomi initiates a final phase, which he launches Cluster missile from space containing Diffusion Ghost that will destroy Academy City by causing a chain reaction with the city's AIM fields. Aritomi attempts to kill himself, only to be stopped by Mikoto, who is determined to save everyone. With the assistance of the Sisters, Mikoto rides in Mitsuko's mech and launches into the atmosphere thanks to Mitsuko and uses the mech as ammunition for a massive railgun to destroy the missile and Shinobu is able to free Janie from STUDY's control. With Janie and Febri reunited and given more neutralizer lollipops, Shinobu plans to bring the twins to an overseas research facility to cure their condition. Kuroko, Ruiko and Kazari says goodbye to the twins while Shinobu learns that Mikoto, with the help of Misaki, erase all of Shinobu's criminal records to give her a new start. As everyone in the city sees Shinobu's plane leave, Mikoto and the gang discuss their upcoming vacation.