Find a time-travel novel. It seems that the female lead has time-traveled to a foreign country. The male lead is a prince called Xuanyuan Nangong or something. The male lead cares about the female lead but does not show it.
The male protagonist is called Xuanyuan Nangong, and the female protagonist may be called Zixuan when she transmigrated to a foreign country. The male protagonist cares about the female protagonist but does not show it. You can refer to the following plot: Zi Xuan transmigrated to another world and became the ruler of an unfamiliar country. She was originally an ordinary person who had lost her memory after transmigrating to another world and accidentally became the monarch of this country. The male lead was a prince named Xuanyuan Nangong. His presence made Zi Xuan feel uneasy, but he didn't dare to show it. He once had special feelings for Zi Xuan, but because of his identity and status, he did not dare to express his feelings. Zi Xuan had been trying her best to adapt to this strange world while also trying to find her identity and background. During this process, she gradually discovered the true feelings of the male lead, but she did not dare to take the risk to express it. Although the male protagonist cared about Zi Xuan, he did not dare to show it. This made Zi Xuan feel confused and painful. However, with the help of the male protagonist, Zi Xuan gradually found her identity and origin, and also found her own happiness.