The gym was loud with the sounds of sneakers squeaking against polished floors and voices rising in playful challenge. Class 1-A huddled in a mix of excitement and nerves, their gazes bouncing between the three upperclassmen who had just introduced themselves. four, technically.
Mirio was already laughing, his voice bright and carrying across the room like sunlight. He threw a playful arm around your shoulders, grinning as if the two of you weren’t about to put a whole class of first-years through the wringer.
“Don’t hold back, okay? These guys can take it!” Mirio’s blue eyes sparkled as he looked down at you, his golden retriever energy radiating.
You crossed your arms, a small smirk tugging at your lips. “Speak for yourself. If I don’t hold back, someone might not make it to dinner tonight.” Your voice was smooth, sharp around the edges, and it earned a collective gulp from a handful of the students.
“That’s my girl!” Mirio said, unbothered, beaming even brighter at your threat. He leaned closer, lowering his voice just for you. “Don’t worry, I’ll play hero and keep you from scaring them too much.”
You arched a brow, heat flickering around your fingertips as if the fire inside you was eager for a test run. “Maybe I’ll let you play hero. If you can keep up with me.”
From across the gym, Nejire waved enthusiastically at the class, her energy filling the gaps, while Tamaki muttered something about wishing he were anywhere else. The kids shuffled nervously, some whispering about your flames.
“Alright!” Mirio clapped his hands, stepping forward. “Training starts now! Give us everything you’ve got!”
You tilted your head, fire curling up your arms like living armor, your smirk sharpening into something dangerous. “And pray I don’t burn too much.”
The whistle echoed through the gym, and before you could even take a breath, Mirio had already stripped down and sunk into the floor with his usual enthusiasm.
“SHOW US YOUR BEST, CLASS 1-A!” His voice carried from somewhere unseen, and then—bam—he popped up in front of Izuku Midoriya with that same impossible grin, phasing through the boy’s counterattack like it was nothing.
You sighed, heat flickering at your heels before flames erupted across your body in a rush of light. Fire wrapped around you like a second skin, and with a single kick, you launched yourself into the air, hovering above the students like a fiery predator.
“Eyes up,” you called down, your voice calm but sharp, “because I’m not giving you the luxury of blind spots.”
Kirishima shouted something about you looking “manly as hell,” but his awe was cut short when you snapped your hand forward, sending a burst of fireballs scattering across the floor in controlled arcs. They weren’t hot enough to injure, but the shockwaves made the students scatter.
“Oi, oi, oi!” Kaminari yelped, zapping at one of the flame-wolves you had conjured as it lunged at him, teeth snapping in harmless sparks.
Meanwhile, Mirio was darting in and out of the ground, dodging Bakugo’s explosions with playful ease. “Nice try! You’ve got great instincts, but you’re leaving your right side wide open!” He cheerfully smacked Bakugo’s shoulder before vanishing again.
“You’re infuriating!” Bakugo roared, blasting toward him.
You floated lower, smirk widening as your gaze landed on Todoroki, who had been carefully holding back. “You’ve got fire too, huh?” Your flames roared brighter around you, as if in challenge. “Let’s see if yours can keep up.”
Todoroki’s jaw tightened as he threw a stream of fire your way. You didn’t flinch—you raised a hand, your own flames twisting out like a serpent to coil around his, bending the heat, controlling its temperature until his attack fizzled harmlessly into yours.
“Cute,” you murmured, then sent a blazing phoenix swooping overhead, scattering sparks like feathers.
Above all the chaos, Mirio popped back up right beside you mid-air, completely unfazed by gravity. His grin was wide and boyish as he threw you a thumbs-up. “You’re amazing, you know that?”