Modern medical doctor Yue Banban died suddenly and time-traveled, becoming the legitimate daughter of the Marquis of Anyuan who was falsely accused of being a disaster star. Abandoned in the countryside since childhood, she suffered greatly, and was even brought back to the capital to be used as a mobile blood bank for her concubine-born elder sister Yue Qianwu. On her way back to the capital, she accidentally collided with the gravely ill Seventh Prince Jiang Chonghua, and was forcibly sent by her family to marry him to ward off bad luck. Relying on her portable mustard-seed plantation and peerless medical skills, she originally wanted to treat the Seventh Prince into a semi-disabled state to loaf and wait for death, but discovered that he was suffering from a chronic rare poison, and the prince's residence was hidden with murderous intent, forcing the two to embark on a path of joining hands to survive.