The Road of Jade was the fiercely guarded supply route that connected the Razor of the Dawn Castle to Shiro Hiruma and the Lone Candle Keep. It was not an officially recognized road by most of the Empire. The regular supply runs along this road from the Kaiu Kabe were almost always under attacks. Crab called it "Road of Dark Jade", because of the used and stained jade fingers discarded by all those who had been there.