The plot centers on the two main characters, who have very different personalities. First, there is a brave girl named Zheng Wei who falls in love with a guy she detests (憎恶,厌恶) at first. Then, there is a second girl, Ruan Guan, who is longed for by many desirable boys but has the cold heart. She regards the irresponsible guy as unique. The ending of the film is sorrowful. Ruan Guan's death is a tragedy. She died before her coming marriage to a handsome, responsible doctor. She deserved to live a happy life. Which sentence is the top sentence in this paragraph?