A «Sly Shrewman» (悪賢いトガリネズミ人間(スライ・シュルーマン), Surai Shurūman?) is a looter monster found in the catacombs beneath Karluin on the 5th Floor of Aincrad in Sword Art Online. A shrewman steals player items that are dropped on the ground, overwriting the ownership of the item with its «Robbing» skill.