There are many novels that tell the story of the protagonist's ruthlessness. These novels usually show the protagonist's ruthless handling and cruel attitude towards the enemy, but sometimes these attitudes are adopted to protect themselves or their own people. These novels may involve many complex emotions and interpersonal relationships, but there will also be many exciting plots and fascinating characters. One of the most common types of novels with a cold protagonist was " Battle Through the Heavens " and " Martial Universe." Both novels were about a protagonist who conquered the world through great power and ruthless methods. In "Battle Through the Heavens", the main character Xiao Yan was extremely cold to his enemies and the weak. His goal was to become the strongest Emperor of the Heaven Dou Empire and to achieve this goal at all costs. In "Martial Yin Yang", the main character, Lin Dong, adopted an even more ruthless method to deal with his enemies. His goal was to become a powerful martial artist and to achieve this goal at all costs. Cold novels usually involve complex emotions and interpersonal relationships, but there may also be many exciting plots and fascinating characters.