Kageaki Minato

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.

The reveal that Kageaki is in fact Hikaru's blood father and that this is the source of his Guilt Complex turns everything about their interactions completely on its head.