
Cyn originally was set as the default Mii for Neksdor Town's Shady Merchant Daughter role in the demo for Miitopia (Switch), unused as the demo ends before reaching Greenhorne Castle. She later appeared in the full game. Her Mii data file can be found in
Her Mii name in her Mii data file is
Her Mii data file does not contain any unused data.
Cyn's role in Miitopia, the Shady Merchant Daughter, is described as so:
She bears resemblance to a Mii featured in Miitopia (3DS) promotional art, as it seems several of the Miitopia (Switch) Miis do, but without the original Mii data for the Miitopia (3DS) Mii, it's difficult to pick apart differences between the two.
A Mii resembling Cyn also appears in promotional art for Miitopia (3DS), where she's a hero given the Imp job.

Below is a screenshot of her in-game as her role in Miitopia.
Here's how to recreate this Mii on the Switch:
US English:
US French:
US Spanish:
EU English:
EU French:
EU Spanish:
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Source: Miitopia (Switch)
This is Cyn's Mii Studio code:
You can download Cyn's charinfo-format Mii data file here: charinfo