Can you recommend some novels with cold-blooded protagonists?

I recommend " The Glory of Nesiril ", a fantasy epic fantasy novel. The main character is a pure mage. There is no female protagonist in the whole process. She is cold-blooded, cautious, and ruthless. She is dedicated to the glory of Nesiril. " The Strongest Forbidden Zone Covering the Sky " was also recommended. The main character of this fantasy novel was also cold-blooded, ruthless, decisive, and completely egoistic. There was no female protagonist in the entire novel. I hope you like my recommendation.😗