r/BokunoheroFanfiction • u/Connect-Meat8230 • 10h ago
Idea/Prompt Quirk......... being a Quirk.
Kyoka blinked heavily, dragging her slippers across the cold floor of her room all the way to the bathroom. The All Might alarm clock from the room next door had gone off with its usual shrill racket, but she could barely manage to unglue her eyelashes.
She turned on the tap, splashed a handful of cold water onto her face, and looked up at the fogged-up mirror.
She wiped the glass with the back of her hand. Routine morning inspection:
Two arms. One head. Purple hair, short, slightly ruffled from the pillow. Two eyes... green.
Wait.
Kyoka blinked. She rubbed her eyes with her knuckles and looked again. Her irises weren't their usual dark, near-charcoal shade, but a bright, electric green, speckled with golden flecks that seemed to throb in rhythm with her pulse.
Mechanically, she looked down at her chest, scanning the baggy oversized shirt she usually slept in.
Wait a second. Are those breasts? Why the hell do I have breasts?! WHERE IS MY—?!
A mental short circuit paralyzed every single fiber of her nervous system. Kyoka gripped her head with both hands, chest heaving in rapid panic.
....... Wait.
She shut her mouth. She looked down at her slender hands, at the audio jack lobes hanging docely along the sides of her neck, and at the unmistakable silhouette of her own body in the mirror.
I'm a girl. I was born a girl. I've had breasts since I was thirteen. Why on earth am I freaking out over having breasts?!
"I-I'm so sorry, Jiro-san!" whispered a timid, rapid-fire, frantic voice, ricocheting not through the air, but directly against the inner walls of her skull. "It was just a reflex! I spent fourteen years getting used to an entirely different anatomy, and when I looked down, I just panicked and... well, my thoughts got tangled with yours before I could separate myself properly! I'm sorry, really, this is so embarrassing!"
Kyoka let out a long, heavy sigh, resting her forehead against the icy glass of the mirror.
"Midoriya," she ground out through gritted teeth, not bothering to lower her voice. "We've been doing this for three weeks. You promised you wouldn't take over the optic nerve before eight in the morning."
"It's just that last night I was calculating the harmonic resonance of your jacks if we amplify the frequency through bone-conducted shockwaves, and I ended up staying awake in your temporal lobe..."
"Shut up and let me brush my teeth."
Kyoka grabbed her toothbrush. In the mirror, her reflection scowled with annoyance, yet the emerald green in her eyes flared with a spark of raw energy that had never been there before.
Izuku Midoriya's medical history was, in strictly bureaucratic terms, a legal and biological nightmare. Throughout his childhood, everyone assumed he was Quirkless. At fourteen, following an incident with a sludge villain, the truth finally surfaced: Izuku Midoriya's Quirk was being a Quirk. A parasitic, symbiotic bio-energetic consciousness capable of latching onto another person's Quirk factor, boosting it to absurd extremes, and reorganizing their internal systems like a living co-processor.
Aizawa had nearly handed in his resignation the day admissions dumped the paperwork on his desk. Midoriya existed as an analytical, chatterbox soul anchored directly to Kyoka Jiro's body.
Down in the dorms' dining hall, Momo Yaoyorozu held her fine porcelain teacup with her customary elegance, watching her best friend slide into the seat across from her.
Momo would always admit, privately and with absolute honesty, that being friends with Kyoka Jiro was... interesting.
"Good morning, Kyoka-san," Momo greeted with a serene smile. "Did you both sleep well?"
"Morning, Momo," Kyoka replied, dropping her tray onto the table with the weight of a thousand years. "I did. The talking parasite didn't."
"Hey, I'm not a parasite, I'm a conscious organic amplifier!" Kyoka's mouth suddenly protested, her tone shifting into something noticeably higher-pitched and more nasal, just before her left hand moved entirely on its own to wag a finger in the air. "And good morning, Yaoyorozu-san! By the way, I was thinking about the molecular composition of the tungsten you used in training yesterday—if you redirect your lipid consumption toward—"
Kyoka slapped her own left cheek with her right hand.
"Control your hands, Freckles. I'm eating breakfast first."
"Sorry," the voice muttered, this time with her mouth shut, buzzing faintly out of the tiny speakers in Kyoka's earphone jacks like a pair of low-fidelity headphones.
Momo took a sip of her tea without missing a beat. At the start of the semester, watching Kyoka slap herself across the face or listening to her argue military tactics with herself in two different registers would have triggered an immediate trip to Recovery Girl. Now, it was just the standard prelude to breakfast.
"Adjustment issues this morning?" Momo asked with genuine curiosity.
Kyoka rubbed the bridge of her nose, a faint blush of mortification still dusting her pale cheeks.
"The idiot panicked in front of the mirror because he forgot I have boobs."
Momo choked on her tea, catching herself instantly and dabbing her lips with a linen napkin.
"IT WAS A PROPRIOCEPTIVE ERROR!" Kyoka's earphone jacks shrieked in unison at seventy decibels, rattling a plate on the neighboring table.
"Keep the volume down, airhead," Kyoka growled, stabbing her fork into her toast. "Next time, I'm severing your link to the speech center and locking you in the cerebellum for the entire combat exercise."
"You can't do that! If you block the brainstem bridge synapses, you lose the three-hundred percent boost to your jacks' speed, and Aizawa-sensei will make us clean Gym Gamma—"
"Try me."
Momo watched the exchange, letting out a soft, discreet giggle behind her teacup. It was chaotic, unpredictable, and completely disregarded any conventional concept of personal privacy. Yet watching Kyoka's jacks crackle with faint emerald electricity—primed to obliterate any target in morning training—Momo couldn't help but think that, despite the early-morning screaming matches in front of the mirror, they made one hell of a team.