Fang Li, a young girl from a small town, became classmates with Luo Yan, the smartest student in their high school, with a cold face. At that time, Luo Yan was a nightmare for Fang Li. Three years later, they met again at university. Luo Yan no longer remembered Fang Li, but the battle between the Sunshine Girl and the Tsundere Demon continued. This rival pair had experienced the most beautiful years of their youth together. They searched for the lost beauty in their lessons and aimed to make their dreams a reality.

Fang Li, a young girl from a small town, found herself in the same class as Luo Yan, the school's most intelligent student with a cold demeanor, during their first year of high school. Back then, Luo Yan was a terrifying figure to Fang Li. However, three years later, they crossed paths again at university. Although Luo Yan had no recollection of their past, the clash between the Sunshine Girl and the Tsundere Demon persisted. This rival duo had shared the most enchanting moments of their youth together. They embarked on a journey to rediscover the lost beauty of their school days and strive to turn their dreams into reality.