The anime centers on four girls at the full bloom of their youth, working hard to achieve their dreams as they struggle valiantly. In Japanese entertainment, Maesetsu! refers to an introductory talk or explanation addressed to the audience before the broadcast of television programs, usually performed by assistant directors and particularly comedians in variety or comedy shows.

Cars are essential tools for spies. Dorothy got permission from the control center to purchase a new car and worked on the specifications. Then the members of the White Dove Squad arrive and use their imagination to design what they envision as their ideal car. Whose ideas will be adopted?

After an attempt on King Richard’s life, assassins target Princess Mary, the next in line to the throne. Team White Pigeon must protect her while locating deadly Cavorite bombs — a tough feat when Ange is Princess Mary’s sister in disguise.

The fourth film of Princess Principal: Crown Handler.

While the funeral of the assassinated Prince Edward, who was the first in line to succeed the throne, is being held, the nobles of the Kingdom of Albion discuss topics such as whether the second-in-line Princess Mary or the third-in-line Duke of Arkham, Prince Richard, will succeed the throne, and how the Duke of Normandy will act.

The story is set in London at the end of the 19th century. A new task has been assigned to Team White Pigeon, a group of spies from the Commonwealth. It is a delivery of a used bookstore owner to the Commonwealth. Ange, Dorothy and Chise successfully recapture the owner, who had been held in a detention center by the Kingdom. Meanwhile, the "spy hunt" became more intense in the Kingdom following an assassination attempt on the queen, and tension is strained at Control in the Commonwealth. Control speculates that the spy who has dispatched to the royal family might be a "double agent." To find out the truth, they order Team White Pigeon to contact with the spy, whose codename is "Bishop." How their new mission will be accomplished? And who is "Bishop"?

双亲因飞机失事而去世的龙一&虎太郎兄弟。收养了这两人的是，同样因事故而失去儿子儿媳的森之宫学园理事长。但条件是，龙一必须在学园内设置的保育室负责照顾小孩！为了做母亲的老师而在学园内设置的保育室。为了补足那里的人手不足而创设的“育儿部”，龙一成为了部员第一号……！？