EP4 - The Library Beneath Water

Ren enters a drowned library where moonlit water hangs above the aisles like a ceiling that forgot to fall. Every glowing Memory Koi seems to know Aya’s path, but every clue also pulls the Ticket Eater closer. When lost destinations scatter through the water, Ren saves a frightened child’s route instead of chasing his sister blindly. The library rewards him with a painful truth: Aya boarded the Phantom Train by choice.