To provide a case 2 and card combined in one that is inexpensive and compact, and ensures the longer effect of information transmission.

The case 2 and card combined in one is equipped with a back plate 4, a bottom plate 6, a pair of side plates 8, left and right, a front plate 10, an inner plate 12, and a pair of inserting plates 14, left and right. The bottom plate 6 and the side plates 8 are extended upward from the back plate 4. The front plate 10 is extended upward from the bottom plate 6, and the inner plate 12 is folded from the front plate 10. Then, the inserting plates 14 are pinched between the front plate 10 and the inner plate 12. Thus, the case 2 and card combined in one forms a case shape. In addition, the case 2 and card combined in one forms a card shape by folding the bottom plate 10 and the side plates 8 from the back plate 4, extending the front plate 10 from the bottom plate 6, folding the inner plate 12 from the front plate 10, extending the inserting plates 14 from the corresponding side plates 8, pinching the inner plate 12 between the back plate 4 and the side plates 8, and then pinching the side plates 8 and the inserting plates 14 between the front plate 10 and the inner plate 12.