[Supernatural Horrors Descend + Transmigration + Playing Dumb While Hiding One's Strength + Feel-Good Story] Xie Nan'an, who cultivated for ten thousand years in a world of supernatural horrors, returns to the age of eighteen. He looks up and discovers that the horrors have arrived. Xie Nan'an once broke into the Netherworld's Paradise, seized the Blood Eyes of Ten Thousand Ghosts, cultivated a unique ghost spirit body, and rose to become the lord of Ten Thousand Lantern City, a supreme ruler in the realm of the dead. After awakening one day, he returns to his youth and resumes a peaceful school life with his younger sister.
Before long, a crimson sky screen descends, merging the mortal world with the Netherworld. Everyone is forced to undergo ghost-spirit trials, and all citizens aged sixteen to forty-five must take part in the assessment. Failure means their souls will be scattered. To everyone's surprise, Xie Nan'an, whose ghost spirit cannot be detected, turns out to be the chief examiner of the trial's highest level.
A thousand-year-old unsolved case involving the destruction of Lingbai City comes to light, and every clue points to Xie Nan'an. While hiding his strength as he tackles challenges and probes the mysteries, he meets Qing Yue, the princess of Lingbai, who bears a deep blood feud, and searches for his parents, who have been missing for fifteen years. As fiends from beyond the realms draw ever closer, long-buried conspiracies are gradually revealed, and Xie Nan'an embarks on a path to protect both worlds.
