Trying to stop gushing over this Modern Mahjong event but I can't help it, the scale is really impressive and they really went all out in a way that feels rare.
Apparently some of the music idols that were there put in mini-concerts. This is Okome Kano, a singer-songwriter and gradol, singing at the night pool block.
I also saw pictures of Hazaki Ayu and Nanasawa Mia on stage with a mic, apparently doing some MC work.
Very, very cool.