Rufus Albarea

Rufus Albarea is introduced as the oldest son of Duke Helmut Albarea, head of one of the Four Great Houses, and half brother to Jusis Albarea.

He is the very first member of the Ironblood, handpicked individual by Chancellor Osborne to act his right-hand man

In Hajimari no Kiseki, Rufus takes up the role of the masked terrorist 'C' and begins commanding the Reborn Imperial Liberation Front in an effort to find the true identity of the Rufus in Crossbell