The main thread of "Dream of Red Mansions" is based on the love tragedy between yong feudal aristocrat Jia Baoyu and Lin Daiyu. The twist of fate, the weak and sentimental character of Jia Baoyu, and their behaviors against the temporal morality, all contribute to the final end, a tragedy. The major difference between their personalities even makes their love more like a heart-breaking song full with sadness and depression. Moreover, classic and typical as it is, their love tragedy is almost unavoidable at that time mainly due to the tragic period they live in, the tragic personalities they possess, and the tragic people they are meant to be. Their love tragedy is not only a tragedy of the fate, but also a tragedy of the era, and it more presents a tragedy of the society.