The Kingdom of Shenzhou was founded nearly forty years ago. I heard that the late emperor abdicated the throne at the "old age" of forty years old and passed the throne to the third prince Yuan Tian. The second prince, Yuan Ye, first refused to take over the throne, and then actually recommended himself to go north to the border to defend the country. What is even more curious is that the prince gave up his throne for a young man, and the young man also went north together. This is where the anecdote about King Lei begins!