Tsubasa RESERVoir CHRoNiCLE

Our groups of friends end up in a world which is frequently visited by people from other worlds. After they learn they have to register, they are allowed to trade a few items they don't need for money. Then they get to choose an occupation. Fei chooses to be a bartender, Sakura chooses to work as a waitress, Syaoran and Kurogane choose a job that hunt random monsters. Will their temporary occupation bring them any closer to finding Sakura's feathers?