True education

In South Korea, the problem of school violence and a toxic educational environment is growing: students terrorize teachers and each other, while the system seems to turn a blind eye. To restore order, Education Minister Choi Kang-seok is creating the Education Operations Supervision Bureau (EOSO), a structure with expanded powers to crack down on violations in schools.

The protagonist is Na Hwan-jin, a former special forces commander and now a BONO inspector. He doesn't stand on ceremony with bullies: he uses extremely harsh, sometimes shocking, methods to put school bullies in their place and restore some measure of order to schools. His approach is constantly criticized, but the results are effective.

Gradually, individual "cases" at different schools coalesce into a larger story: the connection between the minister and the inspector's pasts is revealed, as is the tragedy that unites them. Two years ago, Choi Ka-yoon, the minister's daughter and Na Hwan-jin's fiancée, died. She was a teacher and fell victim to a student named Kyu-chul. Now, Kyu-chul is being released early and plans to once again distribute drugs among schoolchildren—a plot that BONO must confront.