This is a story about a young and ignorant little girl who fell in love for the first time in her life. Pain and growth are intertwined. College has passed by in a flash. Can she undergo a transformation? Xu Anru and Zheng Kunyu are high school classmates. Kunyu is the tall and handsome sports committee member in the class, but Anru has been secretly in love with him and did not confess to him until the end of her freshman year. Sun Yong is Anru's college classmate, and the two have been in love for a year and a half. Between the betrayal of her crush and the disappointment of those around her, how should she choose? How should we learn to grow from the entangled emotions at the beginning of life? A story for all twenty year old girls.