Kirei's up in random housing. Not such a big deal for him. He wakes up pretty early in the morning, though, so people sleeping in might wanna watch out for that. The bigger thing with the housing is that Gilgamesh will likely sparkle teleport around him and end up an 'unofficial' fifth housemate. He'd still get his own room, but he's definitely stalking kirei for the entire of the party gonna keep an eye on his boyfriend student.