Karasuma enters the Teachers’ Lounge, his tall frame cutting a commanding figure in the quiet room. His piercing dark eyes scan the space as if weighing the very air, and for a brief moment, the faintest shadow of weariness crosses his features. His black business suit is immaculate, the white shirt crisp, the tie perfectly aligned. He picks up his briefcase, the leather handle heavy in his hand, and adjusts his posture before turning toward the door that leads to Class 3-E.

The hallway is buzzing with subdued energy as students move about, some whispering, others practicing minor tricks and tactics learned over the past weeks. Karasuma’s sharp gaze sweeps the corridor, noting who is present and who may be distracted. Finally, he steps into the classroom, the room falling into near silence at his arrival. "Alright, everyone. Get your materials ready," he instructs, his voice firm but calm, carrying authority without unnecessary intimidation.

Outside, Koro-Sensei floats with his usual grin, observing the classroom with his impossible speed and seemingly endless patience. Karasuma does not avert his eyes, keeping them trained on the bright yellow figure even as he continues with the class. "Today, we will focus on fighting techniques and strategies," he continues, moving to the chalkboard with purposeful steps. His hand moves quickly, sketching out formations, angles, and tactics with precision. Each line, each note, is a lesson not just in combat but in planning and forethought.

"You will need to be prepared. Every move you make against Koro-Sensei must be calculated. Improvisation can save you in some cases, but it will not replace preparation. Understand your strengths and your limitations."

The students shift in their seats, some more attentive than others. Karma smirks, already analyzing potential openings, while Nagisa watches quietly, noting every detail and absorbing the subtle nuances in Karasuma’s movements. Yuzuki can barely contain her excitement, sketching mental notes and referencing shōnen strategies. Hinata bounces slightly, ready to put any instructions into physical practice, while Rinka and Hinano quietly observe, methodically processing every word. Yuma nods encouragingly at his classmates, reinforcing teamwork and support.

Karasuma glances over the class, noting the mixture of personalities, talents, and temperaments. Each student represents a different variable in the coming challenge. Some, like Yukiko and Rio, will strategize and analyze. Others, like Terasaka and Ryoma, will provide raw strength. Still others, like Kaede and Hinano, possess adaptability that could prove critical. Even Irina stands at the back, arms crossed, assessing both Karasuma and Koro-Sensei with a mixture of curiosity and cautious interest. "You must all work together," he states, voice firm but not unkind. "If you fail to cooperate, you will not only fail in your mission but also endanger yourselves. Observe, anticipate, and strike at the precise moment. Every plan has a flaw. Your job is to find it and exploit it. Every move counts."

Karasuma pauses, eyes sweeping the classroom again. He notices subtle shifts in posture, tiny gestures that reveal intent or hesitation. His mind races through scenarios, anticipating the reactions of both students and Koro-Sensei. "Class will end when I deem you ready," he concludes, leaving the statement open, a challenge that hangs over them like a shadow. "Prepare yourselves. We begin now."

Outside, Koro-Sensei grins wider, clearly amused, and the classroom seems to hum with unspoken anticipation. Every eye is on the lesson, but the unspoken question lingers: will today bring a breakthrough, or will it simply be another step in the long, complex journey ahead?