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The Karasuma Group (烏丸グループ Karasuma Gurūpu) is an institution in Shinjuku that Elena Miyano mentions in file 1011 to have made an offer to hire Atsushi Miyano. Since Renya Karasuma is the boss of the Black Organization, it can be assumed that the Karasuma Group is somehow linked to the Black Organization and Karasuma is the chairman. But, since Gosho Aoyama said in an interview when Karasuma was revealed as the boss, that the real name of the Black Organization and the name of the boss are not related to each other and don't give each other away, the Karasuma Group can't be said to be identical to the Black Organization, nor can the name "Karasuma Group" be the real name of the Black Organization.
 See also
- ^ All Black Organization members' anime version cars have indeed Shinjuku (新宿) as license plate.