Would you show us which 5(from 1) and 9(from 2) girls on Nero's Records of victims in MIE? Maybe some other victims not in MIE? And I'd show my personal theory below.
From 1, Beach Babe, Nerd, Punk, Queen Bee, Tomboy, totally 5.
From 2, the Gyaru Schoolgirl, the Sweet Slut, the Sauna Girl, the Courier, the Technician, the Bassist, the Drummer, and still two unsure.
Hmmm
