you came to the wrong neighborhood then. When japanese hags gather, you know they play mahjong
I know at the very least they did a tournament 2 years ago. The 8 who played was fubuki, mio, flare, lui, koyori, chloe, akirose and pekora
The elder hag was not invited but she decided to stream a random ass fucking png mahjong game solo anyway our of her NES or something alongside the tourney.
On the other side of thing, mahjong is a great a pointer to show you who is a hag or not, these 4 non-hags hold a zako tournament and not a single one know what the game is about
Also take the wild guess on which holostars play mahjong, totally not all the >30 ojii-san.