My Master Likes to be Spanked

Reincarnated into an 18+ novel, I became the villainous maid who bullies the powerless protagonist. Determined to stop the world’s destruction and live a rosy life as a transmigrator, I decided to change the original story. But when I finally met the protagonist, he was... a five-year-old boy with chubby, round cheeks? Stripped of his powers and reduced to a child’s form, this wasn’t part of the plan. Well, since we’re here, can I at least pinch those cheeks? Thus begins my second life—can I successfully prevent the original protagonist’s rampage and save the world?