Marta Bechtol

In London at the end of the 19th century and after the events of Princess Principal (2017). The Empire is increasing counter-spy actions in the wake of the incident, and finds Control, the Commonwealth group in charge of covert operations against the Empire, at unease and suspecting its spy within the royal family as a double agent. Control assigns their spy ring Dove with a new mission to extract a secondhand bookstore owner and deliver him to Commonwealth hands.

A new weapon "Cavorite Bomb" with tremendous power enough to sink a battleship with one shot. The attack on Prince Richard by a foreign sniper fails to put him six feet under, it soon becomes clear that it's open hunting season for Royals.