[BL] Courtesan's Twice-Born Son

Zhu Zhewei makes his living by treating opinionated patients who hate medicine. He never anticipated that his efforts learning how to persuade suspicious elders and improvise medical care would be beneficial in any other aspect of his life than his practice. However, upon transmigrating into a Xianxia world and finding himself the unwanted son of a courtesan, this skillset can very well save his life, as well as the lives of those around him - at least until such a time as he can find his way home! Luckily, he has a System designed to guide him through the world's twists and turns. Unluckily....that System is an incorrigible Fujoshi!