Late at night in an old building at Jiangcheng University, the emergency lights flicker. Lin Leyao stumbles upon a horrifying scene: in front of the blackboard, chalk hangs in midair, scratching out words in blood. Dark red liquid drips through the seams in the board, finally forming a crooked “Save me.” She is about to approach when a man with the cold scent of sandalwood grabs her wrist. “Don’t touch the spirit here.” The man is Gu Fan of Xuanqing Investigations. The woman beside him, Mo Ziqi, spins a copper coin glowing with golden light. When it passes over the mole beneath Lin Leyao’s eye, her expression changes abruptly. “Your birth chart is yin-heavy, and you’re rich in spiritual energy. You’ve encountered a spirit summoned through a pen-and-paper ritual.” From then on, Lin Leyao is swept up in one eerie incident after another: a spirit-board session in the dorm leaves bloody scratches; a red string winds around a nurse’s wrist in the hospital morgue; and a Thai Kuman Thong opens its eyes in a Southeast Asian rainforest. The people at Xuanqing help spirits resolve their lingering obsessions, unaware that a shadow is using resentment to set a trap. When Lin Leyao’s yin-yang eyes suddenly begin to burn, a talisman in Gu Fan’s arms abruptly reveals its markings. Are these spirits’ obsessions a path to salvation, or bait leading into an even deeper abyss?