Fourth Super Real Mahjong game. Has six girls, three new ones that are main characters, and the other three are in a bonus round after completing the game. The three extra girls are Shōko from Super Real Mahjong PII and Kasumi and Miki from Super Real Mahjong PIII.

http://www.arcade-history.com/?n=super-real-mahjong-piv&page=detail&id=2749

About the last picture, it was a glitched frame MAME put in the .mng video file, and when the framerate was reduced for GIF conversion, it was removed. So I thought I'd throw it in anyway.

Speak no evil, hair no evil.

Base +5, Blue.Bull +16, sunnyflower +8, Sennia +8

Some of these animations are just adorable.
I'd say the blue-haired chick is a total cockblocker, but seeing the cliffhanger on pic 21 I think it's fair to apply that to the whole game.
In all honesty though, you're really doing a great service by uploading these obscure pieces of history: thank you.

Base +5, ichikku +14, Absaint +6, sunnyflower +8, warmth +7, CrinkleQueen -6