Final Fantasy: Prisoners of Fate
In the world of Sekai, there exists many creatures. Some of them live peacefully with civilization, while others terrorize it. As a result, a system has been put in place in order to take care of the latter problem.
The bounty board.
Anyone is able to come up with a bounty bu determining the target, the conditions, and the reward. All of the bounty boards are interconnected, and anyone with a guild license can use them. The tasks might range from killing a few wolves that have been terrorizing the local flocks, all the at to fighting the legendary Dragon King Bahamut.
There also exists a leveling system to the bounty board. At the first rank, rank F, you’re only allowed to do the easier tasks. After accomplishing enough grunt work, you’ll increase in rank and be able to do slightly harder grunt work.