You can find it on the Steam forum here.
https://steamcommunity.com/app/4038750/discussions/0/594036392035717444/
It’s such a shame, isn’t it? I looked it up and the crossing event only happens once a year. And of all days, it’s raining in Shibuya on Halloween… Canceling a game event because of real-world weather sounds ridiculous, right? But in this game, it actually happens. As the developer, there’s nothing I can do about it… So I made a Halloween stage as an apology. Just like the last one, it’s a total trash game—seriously ;) But hey, you can make your own stages in PowerPoint too, so give it a try!