Qin's Moon: Yang Shi's Long Song

Before descending the mountain, his master told him: "The Guigu Technique reveals the secrets of heaven, but each use shortens your lifespan by a year." He still left, because a woman named Yan Lingji had been waiting for him for ten years in the Korean dungeon. After rescuing her, he met Han Fei, the writer of the law; Gai Nie, wielding the Vertical Sword; and Wei Zhuang, mastering the Horizontal Sword—the fates of six couples were drawn into the same river: three years to destroy Qin, thirty years to establish a new system, and a hundred years to establish a new dynasty. The Heavenly Secret Technique was burning through his lifespan, but he wanted to change the way the world lived before the candle went out. "Stop killing with killing, exchange hearts with hearts."