On the tenth night when the neon lights went out, the city became a "cage of rules." Tang Wenwen, an ordinary archivist, woke up after a severe headache and found herself in an deserted CBD. The metal ring that appeared out of thin air on her wrist was engraved with cold rules: "Within ten days, complete seven memory games. The winner will get the 'reality' and the loser will become 'data dust.'" Each game is related to her forgotten past - missing friends, mysterious research projects, hidden city secrets, and the "players" who participate in the game. They include strangers with their own hidden agendas, as well as faces that are vague in her memory. Tang Wenwen must look for clues in lies and betrayals, use her meticulous and logical thinking in organizing files, and crack the fatal traps in each game. At the same time, she must piece together the broken memories and uncover the dark forces behind "The End of Ten Days" that control everything. When the truth gradually emerged, she discovered that she was not only a participant, but also the "core key" of this deadly game, and the ultimate decision on the Tenth Night would determine the survival of the entire city.
