The relationship between Chen Liuzi and Shen Yuanyi in "Da Ranfang" can be said to be that of brother and sister. Chen Liuzi was brought home to be raised by Shen Yuanyi's parents when he was a child. He and Shen Yuanyi grew up together, so they have a deep relationship. Although there was a dispute between the two for some reasons, in the end they forgave each other and took care of each other, showing the affection between brother and sister.