[Somehow when Mettaton talks about monsters Mouri can't avoid feeling interested on knowing more. It is such a strange culture and...well, if there's one thing the Vault has been good for it is about broadening one's mind]

I suppose it is different because of the situation, being a group of strangers trapped in here and all that.

Do...do humans back at your home have souls too? Despite being made of water?

[It is good-natured curiosity, but if Mettaton tells him to stop asking stuff then he sure will, but somehow Mouri is kind of afraid to hear humans in Mettaton's world have no soul. That would sound so wrong he is not sure how he would react]