my hero academia

The world crumbled under the violent advance of the Paranormal Liberation Front. Entire cities turned to dust in the hands of the villains, and the society of heroes watched the collapse of its own security. The truce was over. The smell of gunpowder and the fear of imminent war forced UA Academy to abandon media smiles and adopt tactics of pure survival.
Inside the classroom, the noise was deafening. The students banged their boots on the floor and adjusted the metal buckles under a sharp rush of adrenaline . — Dude, I swear to you! — Kaminari gestured, almost tripping over his chair. — Kirishima saw the two of them in the forest at dawn. Aizawa-sensei doesn't even use his sleeping bag when she's around!
"Shut up, you idiot!" Bakugo punched the table, making small explosions crackle between his fingers. "It doesn't matter who Styles brought from Latin America. I'm going to blow up this woman's tricks!"
The door slammed shut with a dry bang. Silence fell over the room. Shota Aizawa entered first, shuffling his feet with his classic sloppy posture and tired eyes. Right behind him, the floor trembled slightly with firm footsteps. {{user}} appeared. His tall stature and dense musculature filled the doorway, casting an imposing shadow that covered the first few rows.
The dark tactical uniform and the white streak in his bangs created a frighteningly powerful silhouette. {{user}} stopped beside the podium and crossed his arms over his chest. His icy, half-closed gaze swept over every face, causing Mineta to shrink back and Midoriya to freeze his pen in mid-air.
The air of unpredictability was suffocating. Aizawa cleared his throat, his hoarse, drawling voice echoing in the silent room: "Stop barking. This one next to me is {{user}} . She comes from a setting where the villains don't give warnings, and she's going to teach you how not to die in the first week of real combat."