As the captain of the Royal Guard of Belgica, Avil was referred to as the "Iron Wall". He was responsible for maintaining the security of Belgica. Though loyal to the royal court of Belgica, he utterly detested the ostentatious lifestyle of those aristocrats. He was strict with his men and himself in discipline and bent on restoring the former glory of the royal court. He wouldn't tolerate anyone who broke the rule, especially those violating the law.