In June 2011, the hot city N sent away batches of college graduates. Four girls in a dormitory at University L bid farewell to each other while crying and laughing. They thought graduation would be the end of a story, but what they didn't expect was that their destinies in four places were still closely linked. They experienced betrayal, cheating, and suspicion, but their trust in each other and persistence in life enabled them to gain love and enjoy success.