I Have a System, But Is She the True Heroine?

After transmigrating, the System asked me who I wanted to win over. With skills like mine, I'd better pick the easiest target: some idiot. What, the System keeps running out of power? What, the idiot was only pretending? Well, maybe I'll choose a secret guard and elope with him instead. Caught... I'm done for... Female lead, save me!