Starting Exchange System: I Am Invincible in the End of the World

[Doomsday + superpower + system + no CP + big heroine + strong female + micro group portrait] Unexpectedly learning that he was a stepping stone for the male protagonist in the novel, Yunzhi said: Am I so stupid? After reading her life in the book, she felt more and more: I am so stupid. After reading the entire book, she decisively drew her sword and became the first obstacle on the male protagonist's journey to heaven. But... After finally solving the male protagonist, why is there still someone who wants to destroy the whole world? Yunzhi:...... (1 If not specified, all characters will have their mother's surname by default. 2 If there is no special indication, all professions will be female by default, that is, driver = female driver, male driver = male driver)