Napoleon remained in Milan, the capital of the Republic of Italy for another five days to ensure the smooth transition of a new government. The Palazzo Reale di Milano served as a residence for the president.
Napoleon was temporarily occupying the residence until tomorrow, which is the date he would leave Italy.
Returning to Paris would mean returning back to his mundane administrative work, he planned on reducing it by doing some of the stuff in Italy.
One of which is a legal code that made the original Napoleon popular. The Napoleonic Code.
The Napoleonic Code is a set of laws that were established under Napoleon's leadership and had a profound impact not only on France but on legal systems around the world. It aimed to replace the patchwork of feudal laws, privileges, and customs that had existed in France before the revolution with a clear and consistent legal framework.