The narrative highlights Guren’s struggle between his desire for a peaceful school life and his need to protect his sister, Karen , from the academy's "darkness".
It touches on Guren's past as an undefeated "underworld" legend, contrasting his current self-imposed F-rank status with his actual lethal skill set. Series Context
The series follows Guren, an elite gamer who intentionally flunks his entrance exams to remain under the radar as an F-rank student. However, the school's "Qualia System"—a highly advanced VR/AR simulation tool—and the constant pressure of student rivalries force him to reveal his hidden power to maintain his version of "peace".