Twin sisters Yun Rong and Yun Chu successively married into the Cheng family, originally hoping for a peaceful life, but due to the arrival of their lodging cousin, disputes arose one after another within the residence. Facing the rights and wrongs and entanglements inside the mansion, the twin sisters relied on each other and calmly plotted a way out for themselves. After Yun Rong became pregnant, the two guarded themselves and their children amidst heavy predicaments. Having experienced the personnel changes in the mansion, the twin sisters kept their hearts together and guarded each other, carefully nurturing the younger generation to grow up. As the years flowed by, the younger generation achieved success in their studies and the family was harmonious, and Yun Rong and Yun Chu finally welcomed a peaceful and poised remaining life; this profound sisterly affection has always been their most solid strength in wind and rain.