I recommend 'The Trash's Counterattack: The Evil Prince Pays on the Concubine Against the Sky' to you. The male protagonist's soul transmigrated to another world and became the Night King. He was cold and evil, but he was gentle only in front of the female protagonist. Not only did he have powerful martial arts and power, but he also had a unique ability. The female lead was not to be outdone either. She turned from a good-for-nothing into a genius. The two of them turned around at the same time, fighting with wits and courage, and slowly fell into the whirlpool of love. I hope you will like this novel. Muah ~