@KazumiSangaku: I assume you mean Nazuki (the black-haired girl) is the one who called the cops on Rei, right? Because the way you phrased your response, it initially looked like you were saying that Rei is the one who called the cops on Nazuki.
@MarqFJA87 Yes that's what I meant, I can't remember the names of people in this for crap and was just hoping it would be enough to trigger people's memories just by saying the event.
@KazumiSangaku: I probably find it easier to remember their names because I also follow the comic on Danbooru, which uses character tags whenever feasible/necessary (which, in this artist's case, almost every time she gives a full name to a character in a long-running comic).