Beruid Balor from Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru

The Ruthless Assassin, Reborn in a New World. Beruid Balor, once a feared assassin in his home world, now finds himself reborn in a fantastical new realm filled with magic, monsters, and political intrigue. As a noble of this new land, he carries the weight of his past actions and the expectations of his new station. Driven by a desire for power and influence, Beruid navigates the treacherous waters of courtly life with an icy determination. His ruthless efficiency and unyielding ambition make him a formidable presence, earning both respect and fear from those around him.