[TS Transformation] Nagisa Shiota's Gender-Swapped Assassination

(This is an Assassination Classroom fanfiction, set at the beginning of Season 2.) In the dilapidated wooden classroom of Class 3-E at Kunugigaoka Junior High, all the students sat upright at their desks. A stern-looking man in a suit stood at the lectern. Though his official role at the school was that of a PE teacher, the boys in the room, along with the box-shaped AI in the corner, all knew his true identity: Karasuma Tadaomi, an official with the Ministry of Defense's Special Operations Department. His piercing gaze was imposing enough to make even the most ruthless gangsters tremble, and it naturally had the same effect on this group of students...