On a cold winter day, Eun-oh, while stealing the belongings of a man who had entered the mountain, gets caught and ends up facing serious consequences.
Fearing for his life, Eun-oh desperately pleads with the terrifying man, promising to do anything in exchange for his life. In the end, he is taken by the man and forced into a life of servitude.
Chae Yoon-sa, a man who despises the world, and Eun-oh, who knows nothing about the world.
From a chance encounter in Moak Mountain to a fate they can’t escape.
Their story unfolds through winter, spring, summer, autumn, and once more, winter.