This type of novel often appeared, such as Agent Rebirth: Return to the Past to Become a Female Assassin, Agent Rebirth: Time Travel to Become a Killer Queen, Agent Woman of Time Travel, etc. In these novels, the female protagonist was a secret agent or killer in her previous life. She returned to the past and became a woman again. She met a foreigner and acted as a translator to help the foreigner solve various problems, thus unfolding an interesting adventure story.