Lee Man-jae at his brink of life, even sold his name to survive. In the world of ruthless barge where no one can be trusted, he held out a threadlike-life…

Nicknamed after a human-devouring spirit, the ruthless leader of an overseas black ops team takes up a dangerous mission in a city riddled with spies.

Dreaming of making a way station for his sister and the villagers who have no choice but to commute along the dangerous train tracks every day, Joon-kyung sends many letters…