The Sound of the Wind Stops in the Universe

You know, you're not alone in the world. Outside the endlessly stacked universe, there exists an icy alliance of guardians - the Inter-Dimensional Observation Department. They float silently outside of time and space, observing, recording, and maintaining the movement of thousands of worlds, like precise and unerring gods. On one of the blue planets labeled "Theta-7", life is still ordinary. Until one day, the ordinary reality was quietly torn apart. An invisible "door" and a silent "seam" quietly closed behind a few ordinary people who had no connection with each other, throwing them into a desperate situation that violated all laws of physics—— Time is stuck in an unsolvable cycle, and yesterday keeps repeating itself. Inside the familiar building, the space is twisted and cracked with strange gaps, and inhuman things are whispering and lingering. Deadly rules are like invisible nooses, tightening every day. They struggled, explored, and collided, trying to find a glimmer of hope in this seemingly perfect cage. But they soon discovered that this cycle was no accidental disaster, and the cage was no ownerless relic. Every struggle, every attempt, and even every emotional fluctuation are accurately recorded by an emotionless sight from a higher dimension. They thought they were fighting against fate, but in fact they were just fish swimming hard in a glass tank, and all their actions were just cold data in the experimental report. The end point of this cruel experiment is not to find an exit, but to evaluate the value of the "sample" to await the final... Harvest.