Der Werwolf - The Annals of Veight ~Origins~

Veight was reincarnated as a werewolf mage, and is now the Vice-Commander of the Demon Lord's third regiment. His task seemed simple: capture and hold a remote commercial city. But the tension caused by mankind and demonfolk coexisting is the source of endless conflict. As a former human himself, he'll need to leverage his ability to understand both sides in order to work with the human viceroy and maintain order!

(Source: J-Novel Club)