Callum Kamiri

Callum Kamiri or "Duke" is a major Antagonist in Brambly Boundaries (Monument 14). Callum signs up with Himawari under the promise that he'll be able to bring his wife, Yukarin Kamiri back from the dead. 
Callum will go to any means necessary to bring back his wife from what he considered to be an untimely and unfair death. 
== Appearance ==
Callum is a tall man with a rugged appearance and slightly long black hair. He owes his unkempt hair to the necessity he places on wearing masks when working. He has an athletic build owing to the training he personally puts himself through in order to complete Himawari's tasks and stay alive long enough to see his wife again.
Callum dresses in a full black tuxe do fitted with a white shirt as well as a pair of white gloves. Callum almost always wears his mask, a full black metal face mask that styles between a mining helmet, fit with a functioning light on the top and a conquistador helmet by its bell-like shape on the top. There's a visor in the centre allowing for vision which, like the rest of the mask, is bullet-proof. 
In Chapter 9 it gets damaged and is temporarily replaced with a mask of a cartoon black and white cat licking its lips whilst looking upwards. He chooses this mask, claiming that his wife used to say he looked like a Tuxedo Cat, her favourite kind of cat, when they'd go out. This mask is not bullet proof.
== Personality ==
Callum is a stoic man, serious of temperament who rarely ever stops working in order to bring his wife back, but he is not ruthless. There are many points where Callum displays compassion for those around him, as well as sweet moments where he more happily recalls moments with his wife. Callum acts fatherly to Nibbles and ends up becoming one of the only people they end up trusting, in a sense, adopting them near the end of the part.
Callum is seen as a second in command of the Black Knights though he hesitates to take the leadership role, owing most of his commands to impulse and instinct. 
Callum previously was married to Yukarin Kazami, a benevolent woman who spent most of her inherited fortune on bettering suffering communities as well as endeavours to ease life for others.