I'm looking for novels that have a black-bellied female protagonist that transmigrates, has systems, or whatever. She makes MLs fall in love with her and she schemes to use their love against them. She acts like she loves them, but she drops them in the end. Something like Ex-Girlfriend Blackens Everyday I'm feeling sadistic today...
Transmigrated Cannon Fodder, Please Calm Down seems to fit? She's a cruel bitch lmao, I really like her