Travelling through the interstellar world, starting with the real and fake daughter

Mai Dongzi thought she was trapped in a bloody plot of a real and fake daughter, but later found out that it was a conspiracy, someone wanted to steal her position as the heroine and the heart of the hero. When she was about to abandon her identity as a fake daughter and walk her own way, she found out that she was in a book. What made her depressed was that the book was not a bloody sweet romance drama, but an interstellar doomsday disaster drama.