In the previous life, the 25-year-old Ji Wuhan worked hard to raise Ling Xue, but eventually passed away due to a car accident.
Ling Xue traveled back to Ji Wu's boyhood and was surprised to find that the gentle Uncle Ji was so ill-fated when he was young. She secretly made up her mind to protect him and let him have a colorful high school era.
However, she was horrified to realize that her memories of her previous life were gradually fading away. What on earth should she do to protect him?