Who is the son of heaven?

Liu Che, the emperor of the Han Dynasty, is already a TV series.

However, the records of Emperor Liu Che are as follows:

Liu Che, Emperor Sejong of the Western Han Dynasty, was the seventh emperor of the Han Dynasty. Emperor Wu of the Han Dynasty is the ten sons of Emperor Wu of the Han Dynasty Liu Qi, the grandson of Emperor Gaozu and the great-grandson of Emperor Gaozu Liu Bang. His mother is Queen Wang. At the age of four, he was named King of Jiaodong. At the age of seven, he was made a prince. He became king at the age of sixteen and reigned for fifty-four years. During his reign, the Han Dynasty flourished, but historians often criticized him for being too superstitious and autocratic.