The Mad Concubine of the World: the Peerless Good-For-Nothing Third Miss

She is a modern and feared killer. She is proficient in medical skills and has a superb silver needle, which makes many killers daunted. But who would have thought that her partner's betrayal would lead her to cross paths with a useless person overnight; he was unfathomable, acted strangely, and was clearly unstoppable, yet he was willing to reincarnate again and again, guarding a country for thousands of years. Was he waiting, or did he have some ulterior secret? When she meets him, what shocking thing will happen? Is it the counterattack of a waste or the rise of a monster? It is unknown... Once in time, watch how she turns things around, teaches scumbag men, suppresses evil women, and conquers a ten-thousand-year-old iceberg...