Identify Does anyone recognize this game?

[simpshadee]

It would be super helpful if anyone could recognize this picture and what game its from!

 

[TheBlueKnight]

The artwork at least seems to be from Doskoinpo/アトリエマゾ, but it's not from their one game on DLSite.

 

[Jhony Miro]

It's just a stand-alone artwork, no actual game behind it