Konyaku Haki sareta Akuratsu Omega wa Gikei Koushaku ni Shuuchaku sareru

Julius, a young omega noble, is a man everyone wants. But beneath his beauty lurks a razor-sharp tongue and an unpredictable temper, two traits that led to the dissolution of a previous engagement and his alienation in high society. But it seems Julius didn't always have such a reputation. Soon, memories of a past life as a simple accountant in another world begin to trickle into his mind. Deciding he doesn't want to waste his new life on court drama and petty fights, he dedicates himself to assisting his brother-in-law, the cold and distant Duke Raphael, with his duties. Yet as the two spend more time together, Raphael slowly warms to Julius, and their instincts pull them together in a way neither of them expected!

(Source: Seven Seas Entertainment)