Xiang Qiu went missing, leaving behind a note saying she was going to take a look inside the building and warning them not to come looking for her. But Ren Yi and Qi Le, her friends, stubbornly ventured into the building anyway.
As they explored the building, they encountered a mysterious man named Chang Yi. They had no idea whether he was friend or foe, but he always seemed to be able to predict what would happen. As they went deeper into the building, both physically and in their minds, the truth gradually came to light. Yet Ren Yi was also filled with questions about the building where he had once lived for several years. He gradually began to wonder whether this was really the place he knew. Many things he remembered seemed to have changed without his noticing, or perhaps had never existed at all. Ren Yi could sense an ominous presence surrounding them. Xiang Qiu had disappeared without a word because she wanted to rescue a missing friend without dragging them into danger. What unknown secrets did this seemingly ordinary building conceal? Trapped inside, Ren Yi and the others often found themselves wondering the same thing.
Theme: Are you really familiar with the space you inhabit? We observe our surroundings with our "hearts," but all the things around us also blind our "eyes," making it difficult for our "hearts" to see. Perhaps we walk along a "road" whose existence is uncertain, and perhaps, when the truth finally comes to light, all we can do is murmur, "So that's how it is."
