Su Shiyun, the lofty guardian deity of the Three Realms and protector of Qingyuan Sect, slays evil with ruthless precision and safeguards peace throughout the Three Realms. Shangguan Qingya, though a member of the demonic path, has never committed an evil deed, yet she still bears a tainted reputation. Her people are slaughtered, and her body destroyed. Her heart burns with hatred, and she swears to take revenge. Su Shiyun retreats into seclusion to break through the bottleneck at the late stage of Deification, leaving her at her most vulnerable. Shangguan Qingya finds her, and the moment she lays eyes on her, hatred and murderous intent surge like floodwaters bursting through a dam. Seeing Su Shiyun’s perfect body, a mad idea takes root in her mind: possession. Catching her off guard, Shangguan Qingya successfully enters Su Shiyun’s body. By the time Su Shiyun realizes what has happened, there is no turning back. Thus begins a tangled conflict of opposing allegiances and hatred. What fate awaits them? Will they be lost to darkness, or find redemption?