When Li Yao was 18, she accidentally bumped into 19-year-old Gu Yao. Little did she know that the collision would make her fall for him. They went from getting to know each other, to falling in love, to hating each other. As layer after layer of mystery is cleared away, will Li Yao and Gu Yao make it to the end, or will they part ways and forget each other...