@Mov201 People don't necessarily like doing what they would like to do to others. There's nothing wrong with those differences as long as it's all consensual!
For those curious, the casino girls get 4 Concealed Triplets and 13 Orphans, two of the highest scoring hands in mahjong. Looking at it again, it might even be an All Green, 4 Concealed Triplets.
@Hermetic_Saint
On her first panel you can see some white in her black dress, that shows her thick legs and that she's got a bit of chest. There is also a next panel with one arm crossed that she's got at least some in the chest. So, she's just flat.
And I am sure that if she was a trap that would have been in the review. Heck, I don't think Kanchal wants a rematch with a guy