A genius alchemist who had been isolated from the world for fifteen years on the mountain from the person who adopted him was persuaded to go down the mountain on this day. In order to make a living, he disguised himself as a man and became a herbalist in Prince Si's Mansion. After many twists and turns, he discovered that his master, Prince Si, was the young man whom he had rescued ten years ago. She had made a ten-year agreement with him, and now they finally met, but...
Concept: The light of the stars is infinite