Su Wan woke up one day and found herself repeating October 17th forever - this day was the anniversary of the death of "upstart businessman" Lu Shiyan, whom she had only met a few times, in a car accident. At first, she just wanted to save herself and escape from the cycle, but she discovered over and over again that Lu Shiyan's death was not an accident, and in each cycle, she had more interactions with him (such as helping him pick up dropped documents, complaining about the weather in the coffee shop next to her).
In order to break the cycle, she began to take the initiative to approach Lu Shiyan, trying to prevent the car accident, but found that he seemed to have a vague sense of the "time loop" ("I always feel like I have seen you today"). What's even weirder is: when the cycle reached the 37th time, she saw a photo from the future in Lu Shiyan's office - in the photo, she was 30 years old and the male protagonist was standing at a wedding, but the current male protagonist was only 25 years old.
