Glenn Radars, a lazy and unmotivated individual, is assigned as a temporary magic instructor at the Alzano Imperial Magic Academy.
The students of Class 2, including Sistine Fibel and Rumia Tingel, are introduced and begin their studies under Glenn's unconventional teaching methods.
Sistine reveals her desire to become a librarian of the Royal Library and her dedication to studying magic deeply.
Despite his lazy demeanor, Glenn demonstrates impressive combat and magic skills during a confrontation with hostile forces threatening the academy.
Class 2 students, led by Glenn, investigate mysterious black magic happenings around the academy and involvement of external enemies.
Glenn's past is revealed: once a respected Imperial Magic Knight who retired after a tragic event involving his close friend and lover, Celica Arfonia.
A significant confrontation occurs as black magic users attack the academy, requiring Glenn and his students to defend it.
The mastermind behind the black magic disturbances is revealed, setting up the final conflict.
Following the conflict, Glenn decides to remain as the instructor, fully committed to his role and his students' growth.
