Aoi Kotsuhiroi has released another exciting chapter, entitled River of Dust, to the ongoing saga of the Erotic Regrets collection. This time her signature human hair, wood, beads and other fascinating ingredients make up full blown knuckle dusters – in what she calls hand objects – and the same goes for her feet objects, with beautiful knotted, twisted leather and hair that wrap up the ankle, look like they could have been dug up from the paleolithic era.