I'm Not a Stand-In

[Daily updates are back] [Please add my completed historical transmigration-into-a-book novel, Bound to the Crow's Mouth System, to your collection!] One-on-one romance, both leads are each other's first and only partners. Female doctor x king Three years after the new Qi emperor, Yuwen Zhong, ascends the throne, he keeps traveling incognito around the country. People think he's inspecting local customs and scenery, but they don't know he's been secretly searching for the former dynasty's princess, Liang Huaiyu, his former fiancee. After finishing his travels in Qi, he heads south to secretly investigate the Yan Kingdom. But this time, things go wrong. Pursued by assassins, he flees to a small border town, where a female doctor named Pei Qing saves him. By coincidence, Pei Qing looks remarkably like the Liang Huaiyu he remembers, but she is clearly not that spoiled, carefree princess. Full of doubts, he takes her back to the capital. His repeated attempts to sound her out all fail, yet during their boundaryless time together, he falls hopelessly in love with her. Pei Qing: "Do you really think you like me? You just see me as Liang Huaiyu's substitute." Yuwen Zhong: "No. I know the difference. I've already let her go." What he doesn't know is that Pei Qing, the female doctor who has saved countless lives and helped countless people, is actually most skilled at making deadly poisons and developing antidotes. Her arrival at his side is no coincidence. During a hunt, she leads him into an ambush by an assassination squad and smiles at him. "You're so foolish. The person who exchanged letters with you for four years wasn't Liang Huaiyu. That person died long ago, and you've been giving your heart to the wrong person all this time. How do I know? Because I am Liang Huaiyu." Later, after they fall off a cliff, she exhausts herself getting him settled in a cave. She removes his mask and says, "I deceived you once, and you deceived me once. Now we're even. Let's never meet again." Theme: Don't cling too tightly to things. Learning to let go and find peace is how you grow into a better version of yourself.