AKA Baretto/Baretto
Set in the near-future, where civilization has collapsed and the world has become a wasteland, and people live by using relics from the past. A boy named Gear who works at a junk shop teams up with a gambling addict named Shirokuma and a Qu-0213 robot that has four personalities, to run a "theft business" to take back items that were unjustly stolen.