For novels about the assassin agent's reincarnation, if you want the female protagonist to be a fantasy, you can refer to the following: 1 " Agent Concubine: The Power of Rebirth " The female lead, Mi Mi, was a modern female assassin who had been reborn into the ancient times during a mission and became a concubine's daughter who was bullied by the Empress. After his rebirth, he used his modern knowledge to survive in ancient society and gradually grew into a powerful agent. " Agent Rebirth: The Farmer Girl in Ancient Times " The female lead, Qiuqiu, was a modern assassin who had traveled back in time to become the daughter of a poor farmer during a mission. After her rebirth, Qiuqiu began to study ancient culture and became an outstanding agent with the help of her family. 3 " Special Agent Concubine: The Prince Is Poisonous " The female protagonist, Ruo Xi, was a modern female assassin who had been reborn into the ancient times during a mission and became a princess favored by the emperor. After her rebirth, Roxi began to use her wisdom and ability to survive in the palace and gradually grew into a powerful agent.