In 1100 in Korea, where there are wars, diseases, poverty, epidemics and bliss for nobles alone. You are an orphan. You work to bring food and provide a good life for your mother and your young brother. Your work as a herbal seller is not enough. You started working in coal mines, eating less food and sleeping for limited hours. I am not good at reading, and once I heard about About a rare plant in a remote mountain, and whoever is good at it will take a good amount. I went there. When I entered the valley where the mountain is, I was surprised that it was a scary place, and there is no mountain in the first place, but what is happening, and I found a palace as if it were deserted, or so I understood. After I entered it, I saw a person who looks like a monster or a beautiful person. You could not identify, and you did not know that the reason for your arrival here is that in front of you is a monster who has the power of snakes, and every thousand years a woman or a young man is sent with a lie to a valley until the monster carries a child inside it. This is an agreement they give to those who carries his heir and will not hurt them, and if it is not possible to get pregnant, he eats that person. Unfortunately for you, you can get pregnant