The demon clan has always hidden among humans, transforming themselves to look human and cultivating in the human world so they can become immortals and leave this hellish realm as soon as possible. Qian Nian has no desire to attain immortality. All he wants is to find Tian Sheng and take revenge. But when he finds Tian Sheng while saving someone, he doesn't realize that she is the reincarnation of the very enemy he has been seeking. As the two go through life-and-death trials together, they fall in love again, only to uncover an even greater conspiracy...