Lee Sungjong is just an ordinary school boy who only wants to go to his hometown after 3 years schooling in the exclusive school for boys, which is placed in the hill, hidden between tall trees, and saving mystery inside the big and old building.

But the problem is not in his school.

Its in the train that he should take to Gwangju.

Supposed to go there, but instead he was taken away to a village in somewhere by 5 mysterious boys in black with red eyes, and fangs.

Where do they take him? What do they want? Will the poor Sungjong make it to go back to his parents?