Or just let us unequip weapons and not be on any class. You can't execute any actions as you're not on any class. You can't go into active mode because you're not on any class. You can run and look pretty and that's mostly it. Honestly, that's the easiest way to do it. Not designing a whole new class just so you can unequip weapons. Something attacks you and you die? Tough shit that's on you. They could call it adventurer or whatever they want, they just need to add a designation for "No class equipped".