The four short stories with different styles in the Mitarai Aoi series written by Shoji Shimada not only challenge the readers' brains, but also reveal the unknown mental journey of the most idiosyncratic detective in history. Why do urinals in restaurant restrooms disappear over and over again? Why was the company's nameplate hit by twelve bullets, and why was there a ghost painting in the building opposite? What are some memorable moments from Mitarai and Ishioka's Christmas? Among Mitarai's memories of Japan, who is the deepest emotion in his heart?
