I'm not really familiar with what's going on on JP server now, but, for some context, from what I know, it seems that Kasumi somehow got herself into a jail cell with the sink, but no toilet in it (twitter #1751735654034354657). I can already imagine some interesting stuff with such premise.
I'm not really familiar with what's going on on JP server now
BA celebrating it's 3rd anniversary with, among other things, a minigame mode showing a day in the life of Hina. It includes a lot of Gehenna shenanigans, such as Kasumi getting arrested and jailed.