A mobile spinoff of the Super Real Mahjong series. Instead of real mahjong, you play mahjong solitaire/shanghai. No actual nudity (as in they get naked but no nipples or genitalia are visible). It was free to play, with in-app purchases in the form of power-ups and hints, and you could only play so much at a time. There were also occasionally events with exclusive puzzles and reward images. It required a permanent Internet connection, and the service was shut down in September, so it's unplayable now.

This gallery is a combination of reward pictures I earned myself in the game and ones I found online. As such, images have different sizes and quality, may parts of the user interface that I was unable to edit out, and it is incomplete, and may never be completed. However, I dumped the installed data from the Android version via Bluestacks, and it seems to include data for all the images. The game files are in a .pack format. If you think you can crack them, please let me know.

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Base +1, homogenized -8, Epion -15, buzzsaw5k -10, Maximum_Joe -40, PersonaFan08 -16, goonnn -4

@billybiscuits I'm interested. I did some research and .pack files should be openable with 7zip, but upload and post a link to the .pack stuff, and I (or some kind, infinitely more capable individual) will take a look.

Base +1, goonnn +6

@lotanary

I think you're mistaken, but I won't discourage you from trying. Here's a .pack file:
https://www.dropbox.com/s/uijmrapqdz3x6zm/intro_image_1_0.pack?dl=0

Base +6, muh220 +7

安卓都有本子

Base +1

@billybiscuits Maybe you'll like to know that I found an apk of this game on the web, installed it and am playing it. It connects to servers, no problem. I think the difference is it has an "R" in the end of the name. Maybe it is a different version than the one you played. And I was able to extract pictures from the game's data.

Base +6, goonnn +4