Saint Shirobara Gakuen Petit☆MAHJONG

"Saint Shirobara Gakuen Petit☆MAHJONG or 聖白薔薇学園 プチ☆MAHJONG" is an arcade video game by the studio Iris (old), released in June 2000. The game itself consists of three parts with different heroines:

Saint Shirobara Gakuen Petit☆MAHJONG ~Matsuzaki Manami no Maki~

Saint Shirobara Gakuen Petit☆MAHJONG ~Nakagawa Akiko no Maki~

Saint Shirobara Gakuen Petit☆MAHJONG ~Enami Satomi no Maki~

The plot takes place in a private girls' academy named after Saint Shirobara. The protagonist works as a mahjong teacher. He meets three sexy beauties: the charming, big-boobed and big-assed principal Matsuzaki Manami, the cheerful and upbeat first-year student Enami Satomi, and a shy girl with glasses, Nakagawa Akiko. The protagonist decides to teach each girl a lesson and play strip mahjong with them. Actually, this video shows all the scenes where the hero wins and of course loses. There is no actual gameplay, and it's not really needed (mahjong is mahjong, after all). Since this is an arcade machine game, there was no sex in it, i.e., the girls just undress and show their tits and asses...