Adventurous Prince Shin of the great kingdom of Garche hears concerning news and decides to infiltrate the desert kingdom of Tarchia. There, he encounters Yashum, a man who runs a private school. Though Yashum appears shady at first, he proves to be remarkably knowledgeable. He is constantly accompanied by a youth named Amaru, who is fiercely devoted to his teacher and protects him as if he were a knight. In this small kingdom burdened by a tragic history, a drama begins to unfold centering around a mystery drug. As the three become entangled, a maddening and codependent love blossoms in a place where dawn never seems to come.