Shen Lingshuang, a modern special warfare instructor, died in an overseas mission and became the cannon fodder princess in an ancient novel. The original owner was a political marriage tool pushed into Prince Jing's palace by his aunt. He was frail and unpopular. Prince Jing Xiao Lin didn't even show his face on the day he entered. Shen Lingshuang woke up in this frail body and discovered that the original owner's "frailty" had another hidden meaning - she was caused by long-term poisoning.
She quietly forced out the toxins and regained her physical strength. She continued to pretend to be sick during the day and climbed over the wall to practice boxing at night. Until an assassin entered the house, she grabbed a sword with her bare hands and killed one of them. When Zhao Wu arrived with his guards, the assassin was already dead. She stood next to the body with an innocent look on her face. From then on - the guards went from being disgusted to being really fragrant, and the court went from doubtful to awe. The sick Princess Yangzi who was rumored to "not live for more than half a year" finally rode her horse behind Prince Jing and guarded the entire northern border with him.