The anime project 'Princess Principal' was officially announced, introducing the concept of the series centered around espionage in a fictional setting.
The 'Princess Principal' anime television series premiered in Japan, showcasing a steampunk-themed story about five girls working as spies in a divided London-like city.
The final episode of the TV anime 'Princess Principal' aired, concluding the 12-episode first season.
The first film of the 'Princess Principal: Crown Handler' series was released, continuing the story of the heroine spies.