I'm Already the Vicious Female Lead of the Apocalypse, So What's Wrong with Being a Little Mean?

[Post-apocalyptic battle for men + space ability + stockpiling supplies + zombie cores + mutated creatures + ruthless heroine who doesn’t play the saint] Yan Zhuo transmigrates into the body of the villainess in a post-apocalyptic novel, crosses paths with the lucky heroine who has a System, and is ultimately devoured by zombies. No matter. She knows the plot, and she’ll seize the heroine’s luck, steal her abilities, and defy fate! - She opens her eyes on the eve of the apocalypse. She’s handcuffed the strongest executive officer in Shengjing District to a bed, tossed her childhood sweetheart, the lord of Xingtian Base City, into the room next door, and locked her fiancé, captain of the South China District special forces, out on the balcony. Yan Zhuo is too overwhelmed to enjoy the attention. Then she thinks, I’m already the villainess of the apocalypse. What’s wrong with being a little wicked? She pats the strongest executive officer’s devastatingly handsome face. “All right, you have two choices. Give me your ring, or kiss me once and I’ll let you go. How about that?” After the apocalypse, this ring will awaken a space ability. So between a must-have for the apocalypse and a man, she chooses the former. The handsome executive officer glares at her, then bites her on the lips. His voice is dark and menacing as he asks, enunciating each word, “Can I get free now?” Why isn’t this going according to the script? Yan Zhuo sends him away, then walks into the next room. “Little brother, here’s the antidote. Take it and get out of here.” Her childhood sweetheart grips her chin and asks through gritted teeth, “He kissed you? Here?” Yan Zhuo coaxes and tricks her childhood sweetheart into leaving. At last, she unlocks the balcony door. “You don’t have to say anything. I understand. I’ll break off our engagement right away.” Before she can finish, her fiancé pulls her into his arms and snarls through clenched teeth, “I’m not breaking it off!”