Need help finding bl

So it’s like a fantasy novel transmigration. And the male lead has white long hair ones once transmigrated. He’s like the Lord of a dying city in the mountains, and he basically has a time limit to save the city before a dragon comes and destroys it. The seme has short red hair and he’s a fake bard, but he’s the actual dragon and they basically get to know each other because the male lead is trying to get to know the city better. Once they get better acquainted, the male decides he wants to hire the redhead because of his knightly features to help him save the city, but the redhead is only interested in the male lead.