Kos Academy is a thousand-year-old magic academy in the Holy Light Continent. An organization discovered the secrets of some unreliable people in Kos Academy, so it sent a three-person team to infiltrate its interior with the goal of bringing down the academy. But Kos is also a place full of talented people. After going through various encirclement and counter-encirclement campaigns, I haven't figured out what will happen in the end...