Card is an orange female cat with an open cardboard box as her head. It consists of drawn-on cat features such as triangular ears, as well as some informational text on the sides of her head like a typical packaging box. Her eyes and mouth are also seemingly drawn-on. However it can dynamically change expression like a real face.

Card has a part-time job as a delivery courier. She lives with her partner Gift at their own home in Teksui. She likes to make crafts and origamis out of paper. She also has an obsession of collecting anything and sort them into cardboard boxes.

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