m really thinking about How did the Northern Graveyard got leaked? This place only know by Kawamatsu, the fox, Hiyori and Zoro. Kawamatsu didn't tell the specific place just said "at a safe location" . How? I dont think there would be a traitor because if we chose a candidate for that, it should be that 4, Zoro, Hiyori, fox and Kawamatsu. Maybe it was just the Onibawansu that tracking out Zoro and Hiyori