Reborn of the third princess

In this country, called MuCheng, females are the ones that dominate, and the females can marry how many males as they want. Mu Qingyun is the third princess of MuCheng. Although she is a princess, she is despised by a lot of people. She trusted her elder sister but in the end, her elder sister betrayed her. Mu Qingyun lost everything. She was tortured by her elder sister and died. If she was able to go back to where all the problems surfaced, would she be able to change her future? Would she be able to survive and save all of her friends and family from death?