| CPC A63F 13/52 (2014.09) [A63F 13/69 (2014.09)] | 6 Claims |

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1. An information processing system comprising:
a display device; and
a computer comprising a central processing unit (CPU), a communication interface, and a
memory, the computer being connected to the display device and configured to perform a method comprising:
setting a first area and a second area as areas in which a first plurality of digital cards of a first player are disposed, the second area being different from the first area;
setting a third area and a fourth area as areas in which a second plurality of digital cards of a second player are disposed, the fourth area being different from the third area;
displaying, on a first game screen that is displayed by the display device, the first plurality of digital cards and a portion of the second plurality of digital cards disposed in the first area, the second area, and the fourth area in an identifiable manner;
displaying, on the first game screen, a portion of the second plurality of digital cards disposed in the third area in an unidentifiable manner;
setting, using an input/output interface that is provided by the computer, a first digital card disposed in the first area as a first base medium;
setting, using the input/output interface, a second digital card disposed in an area where the first plurality of digital cards of the first player are disposed as a first material medium, the area being an area other than the second area;
fusing the first material medium with the first base medium to change an ability of the first base medium, while deleting the first material medium or changing an ability of the first material medium; and
transmitting, to a hardware server using the communication interface, fusion information regarding fusing the first material medium with the first base medium.
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