After traveling through time and becoming the vicious female supporting character in the otome game "Xingyuan Academy", Luo Ning ended up being jointly executed by the four male protagonists. In order to survive, she gave up the dead end of attacking the male protagonist and instead focused on the hidden BOSS - the sickly demon king who was sealed in the basement and was said to eat the hearts of players. The system warned her: "For every 1% increase in his favorability, the burden on your heart will increase by 1%. You will die when it reaches 100%." Luo Ning smiled: "Then I will never let him reach 100%, okay?" She started a reverse PUA: deliberately embarrassing the devil in front of him, giving him expired instant noodles, and teaching him earthy love words. Unexpectedly, the Demon King not only did not turn black, but was deeply attracted by her "uniqueness" and took the initiative to lock the favorability level at 99%. When the four male protagonists changed their minds and started chasing after her madly, the Demon King broke out, hugged Luo Ning and announced to the world: "She taught me how to be a human being. Now, I want to destroy the world for her - or be tamed by her." Luo Ning covered her face: I just want to survive, how did it become saving the world?