Kalbern

Kalbern is the young chamberlain of Helmut Lugenburg, who beats Kalbern from time to time. He serves Helmut on the front lines at the country's borders and is uncomfortable being in a peaceful environment. He gets nervous being in a palace and around nobles and royals. After his parents were killed by a monster, Kalbern begged Helmut to take him in as he respected Helmut for treating everyone equally.

On iRO, this character is localized as Calbern.