I'm not really a fan of online novels, but I can tell you some possible related plots. There was a time-travel novel called " Startling Step by Step " where the female protagonist, Ruoxi, traveled to the Qing Dynasty and became the empress. One day, when she was grinding the male lead, the 14th Prince Yinzhen, was writing beside her, he told Ruoxi to go play in the fireplace. Ruoxi was not used to modern life and felt that the stove was very hot. She did not want to leave. Later, the 14th Prince told her that the stove could help her keep calm so that she could better deal with palace affairs. This is just one of the plots. If you have other questions, please continue to ask.