Sun Jiayou finishes his studies at a university of traditional Chinese medicine and returns home to take over a traditional Chinese medicine shop. There he learns that the local people do not treat illness with medicine and instead rely on a spiritual system of their own. Determined to fulfill his grandfather's dream, he sets out to spread Chinese medicine in this different world. The spirit messenger sees his plan as a serious threat, and through their clashes Jiayou comes upon a deeper mystery. The ONA runs 40 episodes and blends drama with fantasy.