Lin Wanxing, a 28-year-old social worker, suddenly died in front of her computer due to overtime work. When she woke up, she was transported back in time to her senior year of high school at the age of 17. This was the most regrettable point in her life: she was at the bottom of her grades, was isolated, missed her crush on the top student Jiang Che, and gave up her dream of majoring in art due to family misunderstanding. With an adult's mind and memories of the future, she is determined to rewrite her youth, but unexpectedly discovers that time travel is no accident, and there are secrets of time and space related to Jiang Che's family hidden behind it.
