Mein Waifu is the Führer

Erwin Rommel just got the assignment of his life, leading the invasion of Poland in operation Polandfeldzug. Unfortunately his world is turned upside down when a plot to overthrow the German government led by Oberstleutnant Claus von Stauffenberg results in the death of the entire German high command. Undeterred, Rommel returns to Berlin to prevent civil war only to find that the Führer, along with the rest of the high command, is not dead, only... changed into anime characters.

Instead of leading a simple invasion of Poland, Rommel is stuck trying to prevent the world from descending into utter chaos as the Anime-Führer runs Germany into the ground at every turn, blundering at everything from military strategy to diplomacy.