This is the story of a man who married himself off just after becoming an adult after a hundred years of practice. Do you know the world of fairies? Complex, mysterious..., No, here, it is much simpler, because there is a more complicated world of traditional Chinese medicine, Li Shizhen, Zhang Zhongjing, [Compendium of Materia Medica], [Treatise on Febrile and Miscellaneous Diseases]... The demon has a headache, the world is dangerous, I want to return to the demon world. A simple goblin who has no regard for the world meets a top student in the field of Chinese medicine. Their marriage line has just begun to be drawn...