I Wrote Love Letters and Became the Top Scholar

A modern scholar wakes up in the body of a dirt-poor peasant in an ancient empire. Armed with centuries of advanced knowledge, he starts by ghostwriting love letters and tutoring lazy students to lift his family out of starvation. Soon, his brilliance extends from revolutionizing local commerce and irrigation to outshining the empire's greatest minds in the imperial exams. But as his fame spreads, how far can a genius from the mud rise before the powerful try to crush him?