A re-transfer film set includes: a winding spool including: a first outer diameter portion which supports the re-transfer film and has a first outer diameter, a width of the first outer diameter portion in a direction of the rotational axis being narrower than the width of the re-transfer film; a second outer diameter portion being disposed in the direction of the rotational axis in a position being different from a position of the first outer diameter portion, the second outer diameter portion having a second outer diameter being smaller than the first outer diameter; and a third outer diameter portion being disposed in the direction of the rotational axis on a side opposite to a side of the second outer diameter portion with respect to the first outer diameter portion, the third outer diameter portion having a third outer diameter being smaller than the first outer diameter.