After My Engagement Was Annulled, I Made My Fortune from Scratch

Once he woke up and traveled to ancient times, he became a notorious prodigal son. This can't work, I have to do something! The descendant of Yaowang Valley? Who is worthy of being called a miracle healer before me? National locust plague? What a coincidence, I specialize in removing locusts! Etc! I randomly took in a younger brother, and he turned out to be the current emperor...