工藤

"You think it's just kiddy games, don't you? Asshole..." Part of a gang of urchins who hang out at Sanzendou Antiquarian Books. They're centered around Kudou, and the four of them play at detectives. Currently sniffing around Kawase and his circle for unknown reasons. They, too, somehow know a great deal about Tamamori's background. [From Tumbleweeds Escapism]