長平の戦い
In 260 BC, the Qin state inflicts a devastating defeat on the Zhao state at the Battle of Changping. A group of refugees flees from Zhao and settles down in the Lively Valley, an isolated paradise-like world. Two young men, Jing Ke and Fan Wuji, grew up in the valley with their common love interest, Ye Xiaohu. When Fan Wuji learns that his ancestral roots are actually from Qin, he leaves them and returns to his native state, where he becomes a subordinate of the infamous Qin general Bai Qi. On the other hand, Jing Ke and Ye Xiaohu travel to the Qi state and settle there. As Ye Xiaohu is tired of leading a wandering life, she leaves Jing Ke and marries a rich man, who abuses her all the time. Ye Xiaohu plots with the rich man's henchman, Nie Wuya, to kill her husband and seize his fortune, and then frame Jing Ke for the murder.