Time Pass by Suddenly

The story about two sixteen years old, a talented girl and her favorite boyfriend. They both did experiments, worked on a paper, and won an award in mathematical modeling together. The pair went to San Francisco to study abroad, but through some misunderstanding, they separate. Will they find their way back to each other or find new love somewhere else?
(Source: Myasianartist.com)
~~ Adapted from the novel "Time Pass by Suddenly" (岁月忽已暮) by Lu Yi Ge (绿亦歌).