In their university days, Zhao Mo Sheng fell in love at first sight with law student He Yi Chen. Through various incidents where Mo Sheng "stalked" Yi Chen on campus, Mo Sheng's cheerful personality charmed Yi Chen, and they slowly became college sweethearts.When Yi Chen's foster sister Yi Mei challenged Mo Sheng for Yi Chen's attention, Mo Sheng turned directly to Yi Chen for clarification but did not expect to receive a cold response from him.Mistaking that Yi Chen and Yi Mei are a couple, Mo Sheng followed her father's arrangements and moved to the United States to continue her studies. Seven years later, Mo Sheng - who is now a professional photographer - returns to China, and coincidentally bumps into the unforgettable Yi Chen. Since the seven years they broke up, many people stand in the way of these star-crossed lovers: foster-sister Yi Mei; Mo Sheng's marriage in the United States; the unrelentingly infatuated ex-husband Ying Hui; as well as the financial grudges between the couple's fathers. All these situations continue to affect the two former lovers, but instead, these misunderstandings and challenges give them a better comprehension of the love they have missed over the past seven years.