Dear, let me recommend you a few romance novels about Lord Fourth and Emperor Yongzheng. 1. "The Pure Fujin Wants to Fall Out of Favor": It tells the story of the protagonist Ning Zhuzhu who transmigrated to the Yongzheng era and became the direct Fujin of the Wulanala family. She was bullied by the concubines and was determined to fall out of favor. It involved her entanglement with Lord Fourth. 2. "The Fourth Master's Cute Wife Arrives: The main character, Qing Yan, traveled back to the Yongzheng era and was doted on by the Fourth Master. The two of them fought monsters all the way to level up and realized their own path of counter-attack. It was very cute. 3. "After Wearing Xiao Meng: " The protagonist, Su Wanchun, traveled back to the Kangxi era and started the road of escaping marriage with the Fourth Master. They fought with wits and courage and gradually developed a good impression. I hope you like my recommendations. Muah ~ If you need more strong recommendations, please let me know.๐