After the collapse of the control center, Aoi stumbles deeper into the forest, confused and weary. She seeks shelter in an abandoned building, only to discover it's not as empty as it seems. Dusty old bookshelves line the walls, and papers are scattered everywhere. It's a hidden archive, a secret library filled with strange documents and research logs. As she flips through files, she finds not only details about herself but about other experiments — other young people, just like her, who have been part of similar controlled environments. Each subject's life is documented in painful detail. Aoi realizes she is not alone in this twisted reality and is determined to find these other subjects. The deeper she reads, the more questions arise: Who is truly behind the experiment?