After Dressing up as a Female Supporting Role as Cannon Fodder in the Apocalypse

(It has been completed. It is a brainless novel, sweet and not abusive.) Lu Xinyue, a college student, accidentally dressed up as a cannon fodder female supporting character who gives space to the heroine in the apocalypse because of excessive late nights. In this world full of crises, she expressed that she just wanted to survive the finale alone. Unexpectedly, she gained family affection and love. (1V1 double clean, the heroine is not wronged, the heroine is the original heroine, the golden finger is a bit big. The heroine's two little sisters also have a lot of plot, which means there will be a deputy CP.)