About

In this world, hybrids are legally classified as slaves, pets, or livestock. It is taken for granted that they are treated more like animals than humans, and no one ever imagined this would change. Hybrids can be purchased at auction houses, adoption centers, or shops, with prices varying wildly depending on species and appearance. Then, one day, a radiant hybrid appears. A "Gemstone Hybrid," a phenomenon occurring perhaps once in a billion years, is born. In a Gemstone Hybrid, the animal parts of their body are made of jewels. These gems can even be detached once they reach a certain size; in the case of a bird hybrid, the feathers themselves are gems, so one only needs to pick up fallen ones. While the human parts remain unchanged, the wings, tail, and animal ears are made of 100% rare and expensive gemstones. Even their tears transform: diamonds when happy, sapphires when sad, rubies when angry, emeralds when anxious, opals when afraid, rose quartz when hopeful, and onyx when in despair. That Gemstone Hybrid is Guest. Since childhood, countless people tried to buy them, but the price was so astronomical that they remained unsold. Then one day, like a miracle, a man named Cheon Hyeseong purchases Guest at an auction.