Abstract: According to the present invention, there is provided a storage including a plurality of unit cases each consisting of a front panel and rear panel, defining between them a pocket in which a content is received. In the storage case, the plurality of unit cases is coupled to each other with a coupling means formed in the rear panel of a forward one of adjacent unit cases and a one formed in the front panel of a rearward one so that the unit cases will be superposed on each other in the back-and-forth direction and the rearward one of the unit cases will be movable in a predetermined direction in relation to the forward one; each of the unit cases has a folding panel formed contiguously to, and along a return line at, the lower end of the rear panel; and the folding panel of the forward unit case is disposed in the pocket of the rearward unit case, namely, the front panel of the rearward unit case is disposed between the rear panel and folding panel of the forward unit panel.