Ryuko Matoi
17 year old girl who transfers into Second Year, Class Kabuto at Honnouji Academy. Has a huge single-bladed scissor and is searching for the lost half. In an Academy ruled by power and authority, she has a fated encounter.

Satsuki Kiryuin
18 year old girl and the Student Council President of Honnouji Academy. Rules the school with an iron fist. She assesses the students’ abilities, and holds the position/authority to draw out power surpassing that of humans.