The city known as Phantom City is shrouded in mist, and disappearances are frequent. One of the missing is Lu Li, a young male painter. Reclusive by nature, Lu Li immerses himself in his own artistic world. Yet before he vanished, his style changed dramatically, filling his paintings with eerie symbols and omens.
Meanwhile, Jiang Cheng, a coolheaded and astute private detective, is drawn into the mysterious disappearances in the fog. He discovers that every missing person had encountered an ancient art form considered taboo: the Phantom School of Painting.
As his investigation deepens, Jiang Cheng realizes that Lu Li has not simply disappeared. He is trapped inside one of his own paintings. The power of the Phantom School has transformed paintings into real, alternate spaces.
To save Lu Li and the other missing people, Jiang Cheng must uncover the secret of the Phantom School and enter the painted world.
In a world of paintings filled with danger and the unknown, Jiang Cheng meets Lu Li, now embodied as a figure in the painting, and the two join forces to escape.
In the end, Jiang Cheng discovers the secret of the Phantom School and uses it to destroy the alternate space, bringing Lu Li and the other missing people back to the real world. Yet the mist has still not lifted. The secret of the Phantom School is only the tip of the iceberg, and an even greater crisis is drawing near.
The characters and their content are novel and quite appealing.