After Passing Through the Book, the Male Protagonist's Character Is Not Right

Lin Qianshu, as a useless otaku, did not expect that because of the novel he read at night, the content was too exciting and he was so excited. Unexpectedly, in the novel "The True Daughter is Delicate, the Emperor's Pampered Life", the cannon fodder who became the heroine was sick and died early, and her biological sister died early. In the book, there are only a few dialogues from passers-by: "I heard that the queen has a sister?" "Really?" "I heard that she seems to be dead"... But she found that she seemed to be wearing a fake novel. Why was her sister married and not the male protagonist? Why was she and the male protagonist a couple? What was going on? ………… Purpose: I want a sister to protect me