@BTS Army well, as far as the first few chapters, it seems the prince was born unintentionally,. The emperor have no intention of having an heir in the first place its just required to have an heir so he let him live. So the next few girls the emperor slept with was killed after. Good thing the crowned prince is such a cutie and lovable and precious. He will certainly grow a good person since Heun gives him lots of love.