Iryong can become a dragon after thousands of years of cultivation in the mortal world, replacing the gods to govern the heaven and the earth. But now it has been reduced to livestock that can be slaughtered and used in medicine. The Quan family clan has cultivated and slaughtered Iryong for generations. The youngest daughter, Quan Sanfu, accidentally met a wild Iryong in the woods, and thus started a tale of hostility between races... (Source: MangaDex)