I'll recommend a few novels that suit your needs. They were " The General's Poison Doctor's Missy,"" The Secret Service's Concubine's Daughter Is Going to Turn Over," and " Peach Blossom Chaos: The World Toppling Princess Is Too Hot." These novels were all about ancient romance and time-travel. They mainly wrote about love. The female lead was an ordinary person or a woman born from a concubine. There was no assassin or agent background. I hope you like my recommendation.😗