Five members of the mountain bike club, Sangaja. To ride a mountain bike, we head to Chiaksan Mountain, where Min-joon's Uncle villa is located. After arriving at Chiaksan Mountain and enjoying the ride, strange things began to happen to the party…. And something unidentified chasing them! A desperate survival game for Sangaja's party to survive on Chiaksan Mountain begins.

Mount Chiak

Ra-hee is ready for the real world. She has graduated from a respectable college and begins to apply for full-time jobs but is rejected by every company that she applies to. When all hope is lost, she gets a phone call from a newspaper company and is recruited as an intern in the entertainment section. Although reluctant at first, as she believes herself to be over-qualified for the job, she soon learns and understands the passion of the press. During her rollercoaster experience as an entertainment journalist/intern, she discovers the dirty and hidden aspects of the journalism industry.