The whole family travels through the book, the plot is broken but the characters are not

Lü Yanyan, Han Qingyun, their mother, and their five-year-old daughter transmigrated into the bodies of supporting characters in a group-loving novel. Faced with the impending massacre, they managed to save more ordinary people and fled to the capital. They opened a shop and took the imperial examinations, and their lives seemed to be improving. But then, the son of a rebel king took them back to their fiefdom... PS: 1. This is a group story, with the first half containing many foreshadowings, and the second half uncovering the truth, which can be a bit mind-boggling. 2. This is a heartwarming story, not meant to stigmatize the original heroine. 3. The original heroine and the five-year-old daughter of the male and female protagonists both possess cheat codes...