After Rebirth, the Crown Princess Doesn't Want to Be Cannon Fodder

Shen Yuan and Song Pei Yan have been married for five years and have a son together. It seemed like a happy marriage, but except Shen Yuan, everyone seemed to know that Song Peiyan didn't love her. Song Pei Yan was the ninth son of His Majesty and the Empress, and the only legitimate son. He was named the Crown Prince when he was just born. He had unlimited fame and was the most favored son among the favored sons of Heaven. He was cold and dignified, thinking only about the affairs of the court, and was so indifferent to his only princess that she was worse than an outsider. Even so, Shen Yuan still loved him without hesitation for five years. It wasn't until the cold winter of the fifth year that the crown prince married his concubine. As a crown princess, she was banned from entering the side hall. She accidentally knocked over a candlestick and died in a sea of ​​fire. When she woke up again, she went back to a year ago and learned a shocking secret. It turns out that she is actually the cannon fodder wife of the male protagonist in a book! It turns out that Song Peiyan already had Bai Yueguang in his heart! It turns out that his children and himself are just stepping stones for the relationship between Song Peiyan and Bai Yueguang! After waking up, Shen Yuan changed her past gentle and virtuous nature without asking for anything in return, and began to plan for herself and her children. First: Kill Bai Yueguang! Second: Suffer Song Pei Yan to death! Third: Put your own children on the map!