A story about puppy love that adheres to a group of pupils right into adulthood as well as their dreams regarding the future. When Xu Yong Xin encounters her old senior high school schoolmate, Zheng Da Wei, it stimulates bittersweet memories from their school days. Yong Xin keeps in mind a time when she was simply a bookish student that kept herself to herself, until a chance experience introduced her to Gao Yu Xuan, Zheng Da Wen and Zheng Da Wei. The 4 once-inseparable pals changed as well as grew apart as time took place.