Please recommend a novel with the female protagonist as the strong and transmigrated to a fantasy world. Her previous life was an assassin or agent.

😋I recommend the following novels to you: 1. The female protagonist is a powerful secret agent killer. After transmigrating into the fourth miss of the loser, she rose to become a peerless genius. 2. "Defiant Beloved Concubine: Arrogant Mother's Genius Treasure": The female protagonist was a gold-medal agent in her previous life. After becoming a waste in this life, she took the cute treasure to counterattack. 3. The female protagonist was a top assassin in Country Z. She transmigrated to the Tianxun Continent and became a useless young lady before transforming into a powerful crazy concubine. I hope you like this fairy's recommendation. Muah ~😗