Long Live the Fourth Prince

Women have always been the lowly ones, while men have always held the high position. Ahem. So when Fourth Master was reborn and switched bodies with his own primary consort, he was in for a tragic time. [Note] 1. The main characters are Fourth Master and Fourth Master's wife. The other princes have nothing to do with this story. 2. Their previous lives were also different from historical fact. For example, before being reborn, Fourth Master's wife lived longer than he did, and she never gave birth to Honghui. This isn't a plot hole, but a necessity for the story. This will be explained in a later extra. 3. The author is a firm believer in both leads being sexually inexperienced. What happened before they were reborn doesn't count; after they're reborn, you know the drill.