In the hidden village of Cheonuri, deep in the mountains, a goblin resides.
After the passing of his only family, his grandmother, Seung-hyo heads to the village health center in Cheonuri to soothe his empty heart.
Upon arriving in Cheonuri, Seung-hyo gets lost and encounters Bong-yi, a young man from the village, who unexpectedly offers help. However, Bong-yi, while providing assistance, has a strangely cold demeanor and eventually tells Seung-hyo to leave the village as soon as possible.
"Do you believe that other beings, not human, actually exist?"
As the secrets hidden behind the simple and kind villagers and the peaceful village atmosphere begin to unravel, Bong-yi extends a helping hand to the confused Seung-hyo once again...