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Naoya and Naoto catch up to the man messing around with their memories and figure out that he was the same person controlling Masayuki and his mother.
Flashbacks show how Naoto and Naoya grew to trust Mikuriya.
Both brothers, along with Mikuriya, slowly make there way away from the watched area. It's not easy though- the enemy's power is so overwhelming that Naoya can barely go any further.
Naoya has started disappearing more and more, and he even asks if he'll become like Shouko. Naoto tells him he'd never let that happen.