When Lin Xiaofan woke up, he found that he had traveled through time and became the useless ninth prince of an imaginary dynasty. He relied on modern knowledge to solve assassination plots and improve agricultural technology, and gradually gained the emperor's attention. When foreign enemies invaded, he teamed up with the general's daughter Su Waner to design tactics to defeat the enemy and exposed the eldest prince's collaboration with the enemy and treason. After the war, he faked a show with Su Wan'er and became true love. In the end, he was made the prince and inherited the throne due to his merits.
