"Reincarnation"

At ALSUS, Kanzaki, Aiko and Kazuki find the Matter has engulfed the facility. Aiko prepares to sacrifice herself to destroy the Burst, but Kanzaki has a change of heart, accepting that she is the real Aiko, too, and swears to save her. As Kanzaki inserts Aiko into the Matter for the brain transfer, Isazu activates all of the Yuzuha duplicates to attack her. The Divers fight to protect Aiko during the brain transfer surgery, but it is a losing battle until they fire an Anti-Cell Assembler capsule onto the Matter, while back at Kiryu Hospital, Kurose severs the link between Yuzuha and her duplicates. This has the effect of shutting down Isazu and the Matter, returning Yuzuha to consciousness. Kanzaki completes the brain transfer, and the original Aiko emerges from the Matter, greeting the Divers for the first time. The duplicate Aiko, still trapped inside, frees Aiko's mother and brother. As the Matter slowly crystallizes, a creature crawls out, transforms and finally a regenerated Aiko emerges. Kanzaki assumes that Gummi who was trapped inside the Matter with her had a copy of Aiko's body data. The two Aikos embrace, then the duplicate Aiko goes to greet her family, before swapping places with the original Aiko. Life returns to normal for the original Aiko, while the duplicate leaves to live her own life, and create her own name and memories.