I recommend the following novels to you, which are in line with the male protagonist's cold and ruthless cultivation fantasy science fiction theme: 1. "My Host Scumbags the Male Lead Again"-This was a sci-fi space-time travel novel. The male lead was a gentle prince, the Lord of the Ruthless Pavilion, and many other identities. He was cold but gentle. He never got close to women and only stayed for one person. 2. "The Wise Dragon King" was a sci-fi novel about the apocalypse. The main character was a cold-blooded, cautious, dark, and heartless pure mage. He would not pretend to be a pig to eat a tiger. There was no female protagonist throughout the entire process, and there were no strong enemies everywhere. The main character was always someone else's strong enemy. 3. "The Secret History of Cultivation" was a fantasy-epic fantasy novel. The main character was a cowherd. He was cold-blooded, cautious, dark, and ruthless. From the beginning, he moved forward steadily without any sudden outburst at the critical moment of life and death. I hope you like my recommendation. Muah ~