Ronin by Frank Miller

In a dystopian future New York City, a reincarnated samurai warrior, known as a ronin, finds himself in a world of advanced technology and corporate intrigue. Haunted by the spirit of his ancient enemy, a demon named Agat, the ronin must navigate this unfamiliar landscape while seeking redemption for his past failures. As he battles both external foes and his own inner demons, the ronin's journey intertwines with the lives of a brilliant but troubled scientist and her sentient creation, leading to a climactic confrontation that blurs the lines between past and present, honor and vengeance.