pls help finding yaoi

it’s set in a older fantasy world and it’s an enemies to lover trope. i think they’re both either dukes or in the army and one gets promoted. they go on an exertion and one ignores the other. they some how end up hooking up. the bottom has black hair in a ponytail and red eyes and i think the other is blonde. i know it’s vague but if it rings a bell pls let me know! than you !!!