Revenge of the Princess

Abandoned by her biological mother, robbed of everything by her royal older sister, and humiliated along with tortured in the enemy country's military camp drove Mu Ci to death. After rebirth, she no longer was a princess anyone can easily bully. No matter who that is, she would ask for double if they owed her anything in her past life. With an innocent tone, she uttered her creepy words...
"My brother-in-law, if you kept the secret for me, I wouldn't end your life, or else..."

Original Manhua