The spiritual energy is revived and ghosts are rampant.
Chen Xuan, an ordinary high school student, accidentally awakened the "Heavenly Master" bloodline because of an ancestral copper coin he had worn since childhood - he could see things that ordinary people could not see: ghosts in the black mist, resentful spirits in the corridors, and lonely ghosts wandering in the world.
The shadow corridor of the old teaching building, the black fog siege outside the equipment room, the mysterious summons of the Special Administration Bureau... When the familiar campus turns into a ghost domain, and when classmates become partners fighting side by side, Chen Xuan must choose between fear and responsibility.
This is not a story about a hero saving the world.
This is the story of an ordinary boy who grew up step by step into a heavenly master in despair, found light in the darkness, and finally understood the true meaning of the word "guard".
Concept: There is a copper coin in everyone's heart, and it will shine in the darkest moments.