In her previous life, Fu Yuchuo was so blind that he eloped to marry and was violently raped to death by a scumbag.
After her rebirth, she ended the scumbag's career and gave him a cuckold and a cheap son. She even "died out" the scumbag's biological father who had never seen his body, and she also revealed a shocking secret of the royal family.
Fu Yuchuo felt that it was pointless to make small fuss. Since she died because she gave up her identity in her previous life, she should not waste her status as the only legitimate daughter of the Prime Minister's Palace in this life.
Otherwise, find a queen to dangdang?
But why is the eldest brother so opposed and looking like he's seen a ghost?
Alas, this messy world has messy relationships.