in the late republic of china, the situation was turbulent and everyone was on their own bbb。 lin fangfang, sun xiaoru, su moer and liao guoxiang who lived in this era are good sisters who have been playing together since childhood. although they have similar childhoods, they have experienced different lives. on their life path, they have experienced all the hardships and hardships and experienced ups and downs in their destiny, either due to the changes of the times or the failure of their families. but they finally achieved their ideals step by step through their own efforts. after many hardships, they gradually understood that the so-called happiness must be pursued independently, not expectation, and cannot rely entirely on others. the great era sets various difficulties for their choices, but they move forward tenaciously and bravely welcome the arrival of a new society.