Ryodaisho
Adept rogue ("A user of all, a master of none" Can
eventually use all weapons in any situation but it does not level up as fast as any other character it's stats are also lower per level.)
Not all weapons, Adept Rogues are created through a point system to make things fair.
Blade Brandier - 1 Point
Edge Punisher - 1 Point
Twin Blade - 1 Point
Flick Reaper - 2 Points
Lord Partizan - 2 Points
Tribal Grappler - 2 Points
Macabre Dancer - 3 Points
Harvest Cleric - 3 Points
Shadow Warlock - 3 Points
Steam Gunner - 3 Points
Each Adept Rogue is given 4 points to spend. They unlock the chosen extensions through Job Extensions. It seems in G.U+ they are already able to use all chosen classes after creation, but it is non-canon anyway.