A young man encounters a mysterious Yangban mask necklace in the trash which turns out to be more than he bargained for. A young man encounters a mysterious Yangban mask necklace in the trash which turns out to be more than he bargained for. A young man encounters a mysterious Yangban mask necklace in the trash which turns out to be more than he bargained for. A young man encounters a mysterious Yangban mask necklace in the trash which turns out to be more than he bargained for.