When Concubine Qi in "The Legend of Zhen Huan" accidentally gets a "book of answers", no matter what she asks, the most accurate truth about the palace fight will appear on the pages of the book - but the problem is that Concubine Qi's reading comprehension ability will always stay at the level of "three plus two equals five, but three elder brothers plus two elder brothers equals what?"
Tip: Concubine Qi will not become smarter, her intelligence level remains at the level. If Zhen Huan gives birth to an elder brother, her third elder brother will become her fourth elder brother.