Read Prince Maker manga
The prince who went to save the princess turned into a five-year-old child under the witch’s curse! One day a real prince came to the princess who had been trapped in the witch’s tower for 10 years and has been waiting for the prince to save her! As soon as they go out of the castle together with a happy future, the witch’s curse turns the prince into a five-year-old child…! A project to turn the prince into the best husband begins!