What Do You Mean I'm the Most Popular Heroine in a Male-Oriented Novel?!

I jolt upright as if risen from the dead and discover I've been bound to a System. Isn't this the essential transmigration cheat? Before I can even celebrate, I find out it's a System for a universally adored heroine? Isn't that supposed to be for the heroine?? Well, well, well, since I'm here, I might as well make the best of it. The male lead isn't some saintly do-gooder. He's a sweet little black-sesame dumpling at heart. Heh heh heh.