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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.
When Sonezaki shows up at the kirihara's clock shop, things get way out of hands. Sonezaki destroyed almost every clock and made it seem like Naoto was responsible, turning his own parents against him.