Another theme could be self - discovery. By interacting with the common people while selling medicine, the crown prince could learn more about himself and his role in the kingdom, outside of the typical royal upbringing. He might discover the real needs of his people and how he can better serve them.
I'm not sure of a specific well - known novel with just this exact plot. However, there could be some indie or less - known works out there. You might try searching in specialized e - book platforms or niche literature forums.
It could be seen that there were many versions and authors of " The Imperial Prince ", including Li Chen, Zhao Rui, and Hai Dongqing. These search results provided the title and chapter number of some of the latest chapters, but did not provide the specific chapter content. Therefore, he could not accurately answer the latest chapter of the Crown Prince.
" I am the Crown Prince " was a short drama with a total of 104 episodes. You can watch the full version of the show, but there is no specific plot introduction.