A pure sword, who can inspire the ambition of heaven and earth? By chance, who is the only cinnabar in whose dream? She didn't know her past, but he had already carved her into her bones and blood. When he was a boy, he whispered: "The future of heaven and earth will be as dark as ink." But she spoke loudly: "Just write and brighten the world and turn it into a beautiful mountain and river!" After six years of time, she presented her with a sword and made her ambition clear: "With the pure Jun in your hand, you should put all the people first and have the world in mind!" He stroked the sword and stared deeply, his gaze deep. The world? Ten thousand people? But in his eyes, there was only her who taught him to "brighten the world". The thousands of miles of mountains and rivers he asked for were just to make her return to the way she once was, shining like a star and radiant.