Forensic expert Lin Zhiyi and her college-student brother Lin Zhili plunge off a cliff in a stormy night—struck by lightning—and awaken in the immortal cultivation world of Six Realms, just recovering from catastrophe. Their fates diverge instantly: Lin Zhili becomes the Demon Sovereign of the Demon Realm, while Lin Zhiyi cultivates under the guidance of Qingfeng Immortal Lord Xiao Yunshu. Just as this laid-back sibling duo plans to coast through life, they’re urgently summoned by Shen Lian—the King of Hell.
