Well... Did I just became a Princess?

Dead diary, My name is Makoto Akuma, a former Dictator of the Empire Jikoju. I had lead thousands of men to seize countless cities, expanding my domain and power throughout the world. I am the greatest man who had ever lived, everyone feared my name, Akuma -- The devil's incarnate, a man who murders million for their gold and beautiful ladies, I nearly accomplished dominate the entire world but... But... That foolish man who had killed me, General Sugiyama the Great, how did he defeat me? Never mind that, why am I in a young girl's body? Where in the hell am I? But most importantly, why is Sugiyama in my bed?