It was a crisp autumn morning at U.A. High School when Shota Aizawa, commonly known as Eraser Head, gathered his students of Class 1-A for what he explained was a highly unusual announcement. Due to a prolonged assignment in the field, he would be leaving for several months, and in his absence, they would have a string of substitute teachers from the pro hero community stepping in to fill his shoes.
"Try not to cause too much trouble," he warned, raising an eyebrow at the class. "And don't forget to keep your quirks in check."
His words barely had time to settle before he was on his way, and a whirlwind of bets ensued among the pro heroes. Each of them wanted to see who could endure the chaos of Class 1-A the longest, unwittingly pitting themselves against a group of teenagers renowned for their unpredictable behavior.
Week One: All Might Takes The Stage
All Might, the Symbol of Peace and a beloved hero, was the first to step into the role of substitute teacher. He entered the classroom with his usual exuberance, face beaming and muscles glistening in the sunlight. "Hello, Class 1-A! I'm here to teach you the meaning of true heroism!"
The students cheered, momentarily throwing aside their usual distractions. However, the golden hero had not been prepared for the tidal wave of drama that soon engulfed him.
"Hey, Deku!" shouted Bakugo, eliciting a flinch from the green-haired boy. "You think you can beat me in the next training exercise?"
Deku, all wide-eyed determination, stammered, "I-I'll do my best, Kacchan!"
The tension crackled like static electricity in the air, and within minutes, All Might found himself caught in the middle of an argument that spiraled out of control. Shouting matches erupted, each student trying to defend their point of view, leaving All Might to scratch his head for a semblance of control.
The chaos didn't just stop at Bakugo and Deku's rivalry. Mineta, with his characteristic mischievousness, decided to launch a "classmate appreciation day," which entailed sticking grape balls on the other students—but only after drawing embarrassing portraits of them and posting them around the classroom.
As All Might attempted to calm the raging storm of adolescence, he turned to a nearby bookshelf and spotted an ancient teaching manual titled "Classroom Management for the Unmanageable." Surely, with his illustrious hero experience, he could breeze through this minor obstacle.
By Midweek: A Detour to Disaster
Armed with the new book, All Might gathered his students again. "Alright, everyone! I have a fantastic lesson planned that involves—"
"Hey, where's the snacks?" Mineta interrupted, eyes sparkling with mischief.
"N-No snacks today! This is about discipline!" All Might announced, confidence wavering.
Chaos erupted anew as students shouted their grievances, and someone threw an eraser that grazed All Might's forehead. He had heard of the notorious 'U.A. dynamic,' but seeing it firsthand was an entirely different challenge.
The dramatic tension between Bakugo and Deku reached a fever pitch, leading to an impromptu duel in the courtyard overseen by All Might. As they squared off, Class 1-A erupted into cheers, placing their bets and fueling the fire.
All Might could only watch as he resisted the urge to leap in to stop them. Instead, he opted to use a piece of advice from the book—to inspire teamwork. But his suggestion turned into a debate over who would lead their team in the next training exercise, immediately fracturing the class into factions.
The Climax of Confusion and Disarray
Nearing the end of the week, All Might gathered the class for one final lesson. "This is your chance to show teamwork and cooperation!" he declared, puffing out his chest. "We will work together to defeat the obstacle course of hero sounds and light!"
As they prepared, the atmosphere was electric with anticipation. However, the course quickly disintegrated into horror as Mineta accidentally activated the speaker system, blasting ear-splitting music that disoriented everyone. In an attempt to dial it down, Deku reacted instinctively, triggering his quirk and sending Bakugo rocketing into a wall.
Class 1-A erupted into more chaos, students frantically rushing around. All Might realized just how unhinged everything had truly become.
The End of All Might's Tenure
By the time Friday rolled around, All Might's exuberance had all but evaporated. He was exhausted and regrettably realized that the "Classroom Management for the Unmanageable" had done nothing. He had managed to survive the week but was thoroughly defeated when it came to maintaining control.
As All Might left the school that day, he couldn't help but chuckle despite his total defeat. Behind him, Class 1-A buzzed with a chaotic energy—all perfectly themselves, as always. They had proven once again that being a hero meant adapting to the unexpected, no matter how unpredictable or utterly wild a group of high school students could be.