S.I.A. -Student Council Intelligence Agency.

is a Japanese light novel series written by Juichi Nagatsuki, with illustrations by NOCO. The series began publication on October 10, 2012 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
The successor version of the P2P software "MX" and "NY" shares information in the brain between students. The boy who sneaks into a school dominated by "OZ" as a spy decides to save the girl who was imprisoned there.