This is dead or alive extreme beach mahjong.
Play mahjong to earn credits and buy bikinis and outfits for the ladies, on a tropical island.
The girls breasts obey their own physics, jiggling during talking (comple with oogle cam that pans from shin to a foot above the subject's head) and during tile pickup.
The girl flavours are loli, school girl (sailor), short haired sporty, spy with 'to-crotch' cleavage (and glasses), and attractive young housewife.
This needs fan translating... ASAP.