You may be referring to:
If you are looking for an actual document (e.g., a script, fanfic, or wiki entry) titled exactly that, it is likely a private or deleted post from a site like: nobara train magmallow exclusive
Who is this for?
Who should skip it?
(Note: If "Magmallow" refers to a specific plush or "nui" (nuigurumi) doll rather than a figure, the review shifts—those items are incredibly soft, feature high-quality embroidery, and are designed for "travel photography" which fits the "Train" theme perfectly.) You may be referring to:
While variations exist depending on the specific garage kit circle (e.g., Dark Matter, Studio E☆), the sought-after "Nobara Train" figure typically features the following characteristics: If you are looking for an actual document (e