Darius

He is the duke of Principality of Gruce.

Personality
He is a paranoid man and mistrustful towards others. He believes that only his own blood could protect him. He is also cruel even towards his own wives and children.

Plot

 * 1) He sent all of his illegitimate children off to train to become his personal guards including Suzanna.
 * 2) His his minister, Turagin, usurped his throne following which Darius escaped and somehow ended up with Archduke Kurigazu.
 * 3) Archduke Kurigazu wants to marry Suzanna as a condition to help Darius get back his throne.