There were many novels with a calm but powerful protagonist that could be used as a reference: [1]"Fight Through the Heavens": The main character Xiao Yan is a person with a calm personality. As he continues to grow, he becomes stronger and stronger, becoming a legendary figure. " The Peak of Martial Refinement ": The protagonist Lin Jing is a calm person. He has strong strength and perseverance to continue on the path of martial refinement. 3.< Lord Snow Eagle >: The main character, Xiao Ying, is a calm person. He has great strength and rich combat experience. He is a powerful existence that cannot be underestimated. 4 << Full-time Expert >>: The protagonist Yu Wenzhou is a calm person. He has superb skills and unparalleled game experience, becoming a legend of professional e-sports players. 5. Douluo Continent: The main character Tang Wulin is a person with a calm personality. He has powerful soul power and outstanding combat skills. He has become a person who has received much attention.