Refresh 3+7 is a nano movie. The 3 in Refresh 3+7 represents the three days; yesterday, today and tomorrow, and 7 represents the colours of the rainbow. There are 10 independent stories, or episodes, in the nano-movie.
Kai Ying Tai is the heir of a wealthy family. His dream is to become a famous writer, but his father does not agree with such a career path, so Ying Tai leaves home in order to pursue his dreams. Looking for inspiration for a new book, he meets Huai Zhen, who by mistake accuses him of murder. Ying Tai decides to take revenge on it and use it as a major theme of his book, provoking various events. That is, until, when his heart starts to pound for Huai Zhen. Which turns out to be stronger - love or dreams for the release of the book?