So I remembered a Chinese movie I saw a good while ago and couldn't remember the name of it. I'll describe the plot and hopefully someone can identify the title.

The emperor fucked a whore in a brothel and got a son, he took the boy to the palace but the empress was salty as fuck about this so she did all kinds of things to conceive a son. She eventually got pregnant and when she gave birth to a son the emperor started to neglect his first son from the whore.The first son became jealous and tried to kill his half brother but couldn't, however the empress saw him in the same room with her son and started acting hysterical. Fast forward the first son killed his half brother when they became adults and he was hunting the fiance of his half brother because she was pregnant and the first son wanted to secure his rulership of the empire.

Pic not related.