Нанасе Цубаса

A second-year student in class D. A bright, positive, and excellent student, she has been given details about Ayanokoji by Tsukishiro, and has information about the White Room and other things that only a select few know.

At the end of Y2V2, it is revealed that she has been working under Tsukishiro's orders to get Ayanokouji Kiyotaka expelled.