The male and female protagonists of the novel are very powerful, very cold and ruthless, the male and female protagonists have many identities and backgrounds, and are very mysterious.

The male and female protagonists of time-travel novels were very powerful and cold. The male and female protagonists had many identities and backgrounds, and they were very mysterious. " Battle Through the Heavens " and " The Peak of Martial Refinement ": The male protagonists in these two novels are very powerful, have mysterious backgrounds, and are cold and ruthless. The male protagonists were all legendary figures in the cultivation world before they transmigrated. After transmigrating to the Otherworld, they relied on their own abilities to become powerful martial artists. "Douluo Continent": The male lead, Tang Wulin, is a mysterious man. His background is extremely complicated, but his personality is cold and ruthless. He treats his enemies mercilessly. The female lead Tang San was a genius child who possessed formidable spirit power but had a gentle and kind personality. 3."Lord Snow Eagle": The male protagonist Xiao Yan is a powerful martial artist. His clan was once a legendary clan in the cultivation world. However, before he transmigrated, he was betrayed by his clan and transmigrated to another world. After that, he relied on his own hard work to become Lord Snow Eagle and control the cold continent. The female lead, Bai Jingjing, was a mysterious girl with a complicated background. However, her cold and heartless personality had a strong tacit understanding with the male lead, Xiao Yan. 4 Sword Comes: The male lead, Xu Fengnian, is a mysterious swordsman. His identity and background are very complicated, but his personality is cold and ruthless. He treats his enemies mercilessly. The female lead, Mo Fan, was an ordinary woman. Her background was simple, but her personality was kind and gentle. She had a deep relationship with the male lead, Xu Fengnian.