Princess Principal (Japanese: プリンセス・プリンシパル, Hepburn: Purinsesu Purinshiparu) is a Japanese anime television series produced by Studio 3Hz and Actas. The series was directed by Masaki Tachibana and written by Ichirō Ōkouchi. Princess Principal is set in a fictional analogue of Britain called Albion. Albion became the dominant power in the world. The lower classes attempted to overthrow the royal family and a great wall was erected through the middle of London, splitting Albion into two nations: the Commonwealth and the Kingdom. Several years later, five girls, including the Princess herself, serve as undercover spies in the Kingdom working for the Commonwealth, while enrolled as students at the prestigious Queen’s Mayfair school.