[...oh wow that is a lot farther back than he was expecting to hear. Though it's telling of how strange Karamatsu's world is from that the thought of her not being from the same time period doesn't throw him as much as it should.]

At the very least, a shower like what I expect to be here is sort of like a river...well, it is more like having a rain shower that you can turn on and off whenever you would like. And there are probably baths like normal as well.