A 30-year-old single mature woman travels back in time to junior high school, returns to her identity as a girl, and meets her crush of 17 years again. She is determined to rewrite the story of the two of them, so that their crush can be revealed and become their "real" first love. With a girl's heart and the wisdom of a mature woman, she walks into the heart of the person she likes step by step according to plan. But things are not always smooth sailing. The unexpected appearance of the charming girl and the devil teacher has become obstacles and obstacles for her to reverse her first love. At the same time, when faced with the misfortunes and hardships she experienced when she was young, will she make the same choice as before? Better results? Or worse?
And what she does in this space, can it change the reality of her original space, allowing her to meet love again at the age of 30? When the time limit is up, she will return to her original time. Can she successfully reverse it? Everything is unknown, she can only try her best