Aion The Eternity.Kakeru sets out to look for Koharu upon landing of Norn9 on the island where Aion resides. The rest proceeds to make their decision, awaiting the rest of their friends. Aion informs them that this will be the last Reset as its powers are dying after such a long time. Kakeru finds his father's home base and with help from Natsuhiko, Ron, Setsu and Mikoto, promises to kill his father in return for Koharu's safety. Reuniting with his father for the first time in years, Shiro explains the concept of reincarnation, where a soul is once again born into the world, but what he wants is Haruka, his deceased wife, born as the exact same person again with the same soul in the same environment. Just when he was about to give up, Sorata arrived, with the exact same DNA as the man who created Aine, the base of Aion -- making them out to be the same person. As such, he kidnapped Koharu to delay the Reset, because it can only happen if all the ability-users are present. As they engage in battle, Natsuhiko manages to shut down the entire facility and its protective robots. Setsu activates the explosives to flood the weapons as Kakeru resists against Shiro's brainwashing to turn him into a machine. Akito pushes the water back using his ability and rescues the pair. Together, they head towards the island to initiate the Reset. Shiro embraces his death and longs to be with Haruka again.