Song Shi'an transmigrated to a fictional dynasty, the Great Yu. The good news was that he became the eldest son of a powerful family. The bad news was that he was a good-for-nothing illegitimate son, and his father wanted to kill him as soon as he arrived. Rather than lying low and doing nothing, where he wouldn't even get a tile after his father's death, and would have to depend on the eldest son's whims while alive, he might as well pull off a big heist. "Your Highness, you are the true Emperor of Peace." "Eight hundred people it is." "Who said there is only a firstborn son inheritance law?"... The emperor had a dream. He dreamt that someone was instigating his son to seize the throne, saying something like, "The struggle for the crown prince has always been like this." He decided to kill that person as soon as he appeared.