King of Jin in Tang Dynasty.

She, renowned assassin of the 21st century, actually crossed over to become Su Manor's most useless good-for-nothing Fourth Miss. He, Jin Empire's imperial highness, was an emotionless overbearing demonic tyrant with unrivaled talent. Everyone knew that she was a idiotic good-for-nothing and bullied her as they pleased. But only he, the overbearing tyrant with the discerning eye, just wouldn't let go even if his life depended on it. For the time being, let's see how the clash of stubborn versus stubborn plays out in this good show of the chaser and the chased.