Likely exists as an unlicensed resin kit. No official anime, manga, or game. Highly niche.
A look at the "healing" (iyashi) aspect of these videos and why they are designed for slow, meditative consumption. Milky Cat Dmc 25 Hikaru Aoyama The One Pinter 279
To validate hypotheses, follow these steps: Likely exists as an unlicensed resin kit