The Queen Is Getting Married: Your Majesty, Please Bow Your Head

In her previous life, she was the eighth princess of the Emperor of Heaven, and he was the Demon King of the Demon Realm. It was taboo for immortals and demons to fall in love, and they were eventually forced to separate. In this life, she returned from another world and became a substitute queen; but he was a cold, uncertain, moody emperor. One married unwillingly, the other married helplessly. Where will the entanglement of love and hate in the past and present life go in the end...