Takumi awakens in the old Western-style hospital to another wave of lingering echoes from past events embedded in its corridors. Joining forces once more with journalist Amano Aki, the two narrow their search to a long-unused wing whose atmosphere stirs fresh fragments of the building’s hidden history. As sleep overtakes him that night, Takumi drifts into another person’s awareness, surfacing details that deepen their understanding of the site’s enigmatic background.