Chu Xiaoyu, an ordinary person, lives an ordinary, monotonous and boring life. She was almost overwhelmed by the heavy workload, but she had a lot of feelings recently. The strange thing is that these feelings seem to come from the iron door that she has rented for less than a month and makes people want to curse every time she opens it. Every time she turned the key, her brain seemed to be activated, and she actually liked the cumbersome sound of unlocking the door.
Concept: The joy and beauty of life come from the moment you stop.