The theme of this game is that Covid killing in person interactions fucking sucked and I think that's neat. Like all Touhous its a really solid shump with banging music and super fun patterns.
This one functions somewhat like a rouge lite with each run being changed by what cards you buy at each boss. Some boost your power, some give you new abilities, some let you cheat death. Its a really fun system that means every run is just a little different. And a lot of the fun is seeing some crazy interactions between them. I personally love Eiki and Erins together. Its not good but refusing to die is very funny.