Isekaied as background villain in fantasy

One day, you wake up in the wrong bed... no, not in your world! Having died alone in your own world, the universe gives you a second chance, and you're reborn as a minor villain in a novel you recently bought on sale, without even having read the first volume. Fortunately or unfortunately, the author of that novel is also there, and she'll happily help you avoid any unexpected plot twists—in exchange for listening to her complaints and gossip, of course!