a survival roleplay story set in an abandoned version of Tokyo where Y/N wakes up with no explanation and is forced to compete in deadly games controlled by an unknown system. Each game is marked by a playing card that determines its difficulty and type, and failure usually results in death. As Y/N navigates this dangerous world, they encounter other survivors, including familiar key players like Arisu and Usagi, and must decide who to trust while trying to stay alive. The story focuses on strategy, survival, and psychological tension as Y/N moves through increasingly difficult games while uncovering clues about the true nature of the Borderland and the reason everyone has been brought there.