As Ji Hun digs deeper, he uncovers a forum post from a user who claims xFadsk was meant to decode Fadsk Inc.’s “Project Echo”—a failed attempt to create a neural interface for memory storage. The RAR, it appears, is a containment mechanism for corrupted user data, left behind when the project was abruptly terminated. Ji Hun theorizes that the program isn’t just software but a mirror —reflecting fragmented neural data, the echoes of users’ forgotten memories.