Mogu decides to join his childhood friend for a resort part-time job on Monkura Island. Although he is fed up with the domineering attitude of the other participants, what he is more concerned about are the mysterious carnivorous mole holes all over the island, the suspicious spider lilies, and the smiling islanders. What is the true nature of the fear that suddenly attacks the participants from underground, where they cannot see even 1mm ahead? Fear comes from below. Mole survival horror!