For some reason, everyone could see the real world through the book.
Kunikida and the Port Mafia boss roughhousing like brothers, the gentle and guileless white-haired straight man, the Akutagawa siblings getting along, the cool hat-wearing guy who loves drinking and street racing, and of course, Ango, who keeps losing handfuls of hair.
What they saw was the most genuine and heartwarming everyday life.
The story begins after the high school entrance exams.
Theme: The heartwarming everyday life of the Detective Agency, a joy that can't be experienced on the if timeline