When Song Yuran was 17 years old, like most girls, she had a crush on the most handsome and well-educated boy in school. She even had the courage to confess her love even if the boy would say no! Just a few days after her confession, Song Yuran became an orphan and was forced to leave her hometown, but returned to her real hometown. They reunited a few years later, and she and her boyfriend met again. Things had changed, and Song Yuran was no longer the sunny, cheerful, and innocent lemon-colored girl she used to be. Will she continue to pursue the unfinished dream of youth or have she forgotten the past and start a new life? Song Yuran is the past, present and future of each of our girls. The changes in life and the mystery of her life experience made her suffer, but they did not defeat her. She wrote her own story with her passion for life.