In the deepest depths of the mountains, there lies a small village where budding physicians learn how to help those in need. It is a place Cho-ah calls home, and he expects to spend the rest of his days there. However, everything changes when a mysterious, heavily wounded man appears out of nowhere. Cho-ah does his best to nurse the stranger back to health, despite the misgivings that his fellow students have about him. The man’s name is Mujin, and it soon becomes clear that the only person he trusts is Cho-ah. How will this handsome stranger change Cho-ah’s life?