Princess Principal Crown Handler: Chapter 4

Princess Principal Crown Handler: Chapter 4 follows the White Pigeon spy team after a failed attempt to move Princess Mary to a different faction. Captured by the Kingdom's Ministry of the Interior, the girls are discovered to be agents for the Commonwealth. To secure their freedom, they are ordered to act as double agents for the Kingdom. While Princess Mary is placed under the guardianship of the Duke of Normandy, the other spies are released under strict supervision to prove their loyalty to both the Republic and the Kingdom.

The film was directed by Masaki Tachibana, who previously directed Ghost in the Shell: Stand Alone Complex - Solid State Society, Giovanni's Island, Blue Thermal, and the first two chapters of the Princess Principal Crown Handler series. Produced in Japan by Actas, this 60-minute production blends elements of action, adventure, drama, mystery, and animation. It serves as the fourth installment in the Princess Principal series.