Lin Xuan, the master of martial arts, was swallowed up by the space crack at the moment of impacting the "Martial Breaking Void", and fell into the great sea route where pirates were rampant. When he was about to die, he met a fire-breathing dragon that also fell from the sky and was seriously injured. One man and one beast formed a blood alliance, forming a bond that spanned the world. In order to find a foothold, Lin Xuan joined the navy with his fire-breathing dragon. He used the principles of martial arts to dismantle and reconstruct the six naval styles, honing his physical skills to the ultimate level of unparalleled physical fitness. He also awakened the three-color domineering energy through the hardships of life and death, integrated the true meaning of martial arts into the domineering energy, and created the "Martial Flame Fist" that is unparalleled in the world. From a recruit in the East China Sea to a naval admiral, he used his fists as his blade and his flames as his shield to suppress the Yonko Pirates, challenge the legendary powerhouses, and make the name "Martial Flame" resound throughout the world. When the Navy's cloak of justice buzzed, and when the flames of the fire-breathing dragon enveloped the armed color and burned away the darkness, the sea finally knew that true invincibility was never the power of Devil Fruit, but the absolute crushing of fists and flames.