He thought that it was going to be more difficult to get into a human party, although it was Halloween and he got pretty easily into one of them. Satoru was, for first time in a million years enjoying a party, seeing the humans dancing and drinking like pigs. With a glass of something that tasted weird but remained quiet and watching everything and everyone. They mustn't know that he's a really vampire, and from the royalty also so he was like, waiting for something interesting to happen.