Minato Kageaki

A young man secretly working under orders from the prince to subjugate the Silver Star. His Tsurugi is Muramasa. While on a mission, he introduces himself as a policeman working part-time for the Kamakura Police Department.

Spoiler

Under normal circumstances, he spends his days in his cell at the Kamakura Detention House as an unconvicted prisoner due to committing a variety of crimes, including matricide.