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Mafuyu has dark purple hair with eyes that fade from dark purple to sky blue in a gradient. Her hair is curly, long, and usually kept up in a ponytail that tends to fall over her right shoulder. Her ponytail may not be considered messy, but Mafuyu's hair does not seem to be combed. Mafuyu’s bangs are fairly long as well, with the middle section falling just a bit past her eyes. She has an ahoge that swoops to the right above her bangs, and her face is framed by short, slightly curled strands on each side. Her ponytail is held in an orange hair tie.
Mafuyu’s unit outfit is a dark grey stylized school uniform, with long sleeves that fade to black and are tipped with grey frills. Her shirt collar is black, outlined in light grey, and her butterfly ribbon consists of two ribbons, one black and one blue, tied at the middle. Her choker is black, with a gold charm. The skirt is long and grey, with two stripes of black near the bottom, and it is covered by two semi-transparent pieces of fabric. The skirt grows longer at the back of the outfit.