Real Mahjong Adventure Umi e ~Summer Waltz~

This spin-off title in the Super Real Mahjong series takes a much different approach. It's a visual novel. You can pursue a relationship with several girls from Super Real Mahjong PV, P VI, and P7. There is a lot of talking, and you often have to make choices of what to say or do. An overworld map system is utilized, as the girls are in different locations.

[From Moby Games]