In this chapter, we're introduced to two transfer students from the same high school, who happen to be identical twins. They're called "sisters" because they're identical in every way, and they've been introduced to a whole new set of rules and customs at the same time. We're also introduced to the school's principal, who's super-annoyed and super-creepy. He's also super-sensitive to the fact that the two girls are in the same school, and he wants to make sure that they don't get into trouble. He wants to know what's up with the whole "sacrifice" and "sacrifices" thing. The girls are super-excited to find out that the principal is the one who got them into the school in the first place, and that he's going to try to get them into trouble by making a deal with them.