In Tokyo, the 20th year of Xining in the Song Dynasty, it was midsummer. The moonlight is like water, shining on the streets and alleys, illuminating the green bricks on the ground and the tiled houses in the distance. Occasionally there are pedestrians passing by in a hurry on the street, either buying groceries or going home, as if everything is fine. However, beneath this peaceful surface, a sudden storm is brewing in the darkness.
It was a night surrounded by humid air and hot night wind, and a young doctor was found dead in an alley on the street. The deceased's name was Yang Zihao, a well-known doctor in Tokyo. He became famous for his superb medical skills at a young age. However, the cruelty of fate befell him impartially that night.
When Yang Zihao's body was discovered, he was lying beside the ancient well at the end of the alley. There was no external injury on his body. The only thing that stood out was the trace of unknown fear in his closed eyes. In his hand, he held tightly a piece of paper that read - "Destined to leave the soul under the moon."
