Decha is a genius high-ranking general, called back to Austell from The Outside by the council. Theodore Chen, the director of the Crime Affairs Agency requests for Decha to do some local investigation on the recent threats targeting Austell's most prestigious University, Grandell.
The job is easier said than done. Decha has to go to Grandell undercover as a student again, investigate a great number of students and pick out suspicious behavior. The problem is that Grandell has few students from the opposing Sector, the Brackets.
Sector B is full of people who are of the lower class. They work as much overtime as possible to make ends meet. Decha's mission entails that Sector B residents are most likely responsible for the threats directed at Grandell. While trying to solve the mystery under the radar, he gets involved with a Bracketer woman who oddly refuses to leave his side.
Decha will have to uncover hidden truths. He may even go through a journey of self-discovery and have a deep understanding of how the Sector's flawed system truly works.