Talk:Monster Girl Quest: Paradox/@comment-25723053-20161110113537/@comment-29746361-20161110145146

Master Thief lvl 7 gives you the ability. Alternatively you could go to the Labyrinth and try to get Master Thief's Gloves or Godly Thief's Gloves from those random chests. They each drop about once in 200-300 floors for me, so some grinding may be necessary.