[Transmigrate into a book / Mind-reading / Sweet romance / Not a strong heroine story] Yu Sui'an transmigrates into a book. She's a love-struck supporting female character in an adored-by-everyone novel. She grovels for the male lead's affection, earning the wrath of Heaven, which favors the heroine. Her entire family meets a terrible end.
To her eldest brother: Big Brother, you shouldn't be so down-to-earth. Your chief secretary is evading taxes under the company's name. When your rival discovers it and reports him, you'll be the first one to go to prison, and you'll die of an illness before two years are up.
Her eldest brother reports the secretary that very night and proves his own innocence.
To her second brother: Second Brother, there's nothing wrong with dating. It's fine to like girls, and it's fine to like boys, but this cross-dresser is no good.
Her second brother shuts himself off from love overnight and devotes himself to charity and serving society.
To her third brother: Third Brother, maybe don't become an unwitting father. You're the only one in our family who has someone who loves him. When you turn around, that person will be right there, where the lanterns are dim.
In the middle of the night, her third brother gets up and kicks out the woman who blamed him for getting drunk and demanded that he take responsibility.
To her fourth brother: The heroine may be wonderful in every way, but she's the male lead's girl. You're my only full brother, and you're a cannon-fodder romantic. You don't even make the list of fish in the heroine's pond, and she can't remember your name.
Her fourth brother: I'll recite the Three Character Classic day and night, just so I won't misjudge people.
Yu Sui'an scolds herself every day, then scolds her brothers. By the time she's done, she realizes her brothers seem to have seen the error of their ways.
But now that she's a clear-headed romantic, her benefactor keeps stopping her at the gate every day, saying that he saved her life and wants no repayment, only for her to give herself to him.
Hmm, not bad. There is no exaggerated plot setting, and the characters are well designed. The most taboo thing about wearing a book is being too unique, and this did not appear. There is no repeated emphasis on how the paper man is. The heroine is adapting to the life inside and begins to have a sense of agency, instead of always being on the edge. The plot progresses quite quickly in some places, but it is within the acceptable range.