Under the neon lights of the bustling city, there are countless unknown shadows. Yan hope, a newly graduated history student, originally wanted to settle down in the old house left by his grandfather. However, when he was sorting out his belongings, he discovered a cowhide notebook with copper buttons sewn on it - the "Evil Notebook" that his grandfather had never mentioned to him. The bloody curse mark on the first page of the notebook suddenly lit up the moment his fingertips passed it. From then on, his peaceful life was completely shattered.
The girl crying late at night in the rental house, the figure in red leading passers-by into the abyss in the old alley, the resentment attached to the equipment in the hospital... Those "things" that only existed in legends began to break into his world one after another. Grandpa left behind not only a notebook, but also a secret family spell and a half-broken "Suppressing Spirit Pendant". Yan hope was forced to pick up the peach wood sword, use the manuscript as a guide, and walk in the gap between Yin and Yang.
Every ghost hunt is a game with the dark side of human nature: the singer who was trapped by love and turned into an earth-bound spirit, the businessman who was betrayed by ancient jade due to greed, the old woman who stayed in the world to pay off her son's debt... While Yan hope solved a series of strange incidents, he also gradually discovered that the truth behind his grandfather's "accidental death" ten years ago was not simple. The vague records in the notebook, the deepening cracks on the jewelry, and the secret tracking of a mysterious organization all point to a secret of yin and yang that spans a hundred years. He must stand firm amidst the fangs of evil spirits and the deceitfulness of the human heart, and use the "benevolence" and "skills" taught to him by his grandfather to uncover all the mysteries and protect the peace of himself and those around him.
