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The Domestic Life Of Shinsou And Kaminari.

The Hum of the High-Voltage Heart

The Sunday morning sun was a soft, apologetic glow filtering through the sheer curtains of their bedroom, casting long, honey-colored stripes across the rumpled duvet. Hitoshi Shinsou was awake, though only technically. He was in that hazy, liminal space where the weight of his own body felt like it belonged to someone else, and the only thing anchoring him to reality was the steady, rhythmic puff of Denki’s breath against his collarbone.

Denki was a sprawled disaster of a sleeper. He was currently draped over Hitoshi like a golden retriever trying to prevent its owner from ever leaving the house. One of his legs was hooked over Hitoshi’s hip, and his hand was splayed across Hitoshi’s chest, his fingers twitching occasionally as if he were dreaming of a particularly intense round of Mario Kart.

Hitoshi reached out, his fingers tracing the faint, jagged line of a scar on Denki’s forearm—a souvenir from a debris-clearing mission six months ago. It was a reminder that while they were currently safe in their sanctuary, the world outside was still jagged and demanding. But for today, the agency was quiet, the patrol logs were clear, and the only mission on the agenda was staying exactly where they were.

"You’re thinking too loud," Denki mumbled, his voice thick with sleep. He didn't open his eyes, but he burrowed deeper into Hitoshi’s side, his nose rubbing against the pulse point in Hitoshi’s neck.

"I wasn't thinking," Hitoshi lied, his voice a low, gravelly rasp. "I was observing the structural integrity of the ceiling."

"Liar." Denki finally cracked one eye open, the gold iris shimmering even in the dim light. A small, stray spark of electricity danced between his messy blonde locks, a tiny *snap* of sound in the quiet room. "You were doing that thing where you worry about the next mission before the coffee is even brewed. Stop it. It’s Sunday."

"I can't help it. It’s the hero brain," Hitoshi said, though he relaxed his posture, his hand moving to cup the back of Denki’s head. "Besides, someone has to be the realist in this relationship. If it were up to you, we’d live on watermelon soda and vibes."

"Vibes are a very sustainable energy source, actually," Denki countered, a sleepy, lopsided grin stretching across his face. He propped himself up on one elbow, looking down at Hitoshi with an expression that was dangerously tender. "But if you’re so worried about the future, maybe we should focus on the present. Right here. Right now."

Denki leaned down, his lips brushing against Hitoshi’s in a kiss that was slow, tasting of morning and lingering dreams. It wasn't the frantic, adrenaline-fueled passion they often shared after a high-stakes mission. This was soft, deliberate, and grounded. It was the kind of intimacy that could only exist between two people who had seen the worst of the world and decided to be each other’s best.

Hitoshi’s hands found the hem of Denki’s oversized t-shirt—one of Hitoshi’s old UA shirts that Denki had long since claimed as his own. He slid his palms upward, feeling the warmth of Denki’s skin and the faint, buzzing vibration that always hummed beneath the surface of the blonde’s quirk.

"You’re leaking again," Hitoshi whispered against his lips, feeling the static electricity make the fine hairs on his arms stand up.

"It’s your fault," Denki breathed, his eyes darkening. "You make me... overcharge. Just by looking at me."

Denki pulled the shirt over his head and tossed it somewhere toward the foot of the bed. He moved with a grace that often surprised people who only saw his goofy, "whey" persona. In the privacy of their bedroom, Denki was fluid, confident, and intensely focused on the man beneath him.

He began a slow trail of kisses down Hitoshi’s throat, lingering over the sensitive dip of his collarbone. Every touch was accompanied by a tiny, prickling shock of electricity—not enough to hurt, but enough to make Hitoshi’s nerves sing. It was a sensation Hitoshi had grown addicted to, a physical manifestation of Denki’s love that bypassed the brain and went straight to the heart.

"Denki," Hitoshi groaned, his fingers tangling in the blonde hair at the nape of Denki’s neck.

"I’ve got you, 'Toshi," Denki murmured, his voice dropping into a low, honeyed register. "Just let go. No thinking. No hero work. Just this."

As they moved together, the air in the room seemed to thicken with ozone. The sheets became a tangled mess of silk and static. Hitoshi watched Denki’s face, mesmerized by the way the blonde’s eyes seemed to glow with an internal light. When they finally joined, it was like a circuit completing itself. A surge of pure, unadulterated energy pulsed through Hitoshi, a jolt of pleasure so intense it made his vision blur.

Denki’s back arched, his hands clutching at the pillows as he let out a broken, breathless sound. Tiny yellow sparks cascaded from his skin like miniature fireworks, illuminating the dim room in flashes of gold. Hitoshi held him tight, his own body trembling as he rode the wave of Denki’s power and his own mounting release.

In the quiet afterglow, they lay intertwined, their breathing the only sound in the room. The static had settled into a low, comforting hum, and the air smelled faintly of burnt sugar and lavender. Hitoshi pulled the duvet over their cooling bodies, tucking Denki into the crook of his arm.

"I think you blew a fuse in my brain," Hitoshi said after a long silence, his voice barely a whisper.

"Good," Denki replied, his eyes closed as he rested his head on Hitoshi’s chest. "It was getting too crowded in there anyway. Needed a reboot."

Hitoshi smiled, a genuine, rare expression that reached his eyes. He kissed the top of Denki’s head, feeling a profound sense of gratitude for the chaos and the light this man had brought into his life.

After an hour of blissful, lazy drifting, the call of hunger finally became too loud to ignore.

"Pancakes?" Denki suggested, staring hopefully at the bedroom door. "With the chocolate chips? And the whipped cream?"

"That’s not breakfast, that’s a cardiovascular emergency," Hitoshi said, though he was already sitting up and reaching for his sweatpants. "But fine. It’s Sunday. I’ll make the coffee; you stay away from the stove before you accidentally ionize the batter."

"I only did that once!" Denki protested, throwing a pillow at Hitoshi’s retreating back.

The kitchen was their second sanctuary. It was filled with mismatched mugs, a fridge covered in photos of their friends, and a very expensive espresso machine that Iida had gifted them for their housewarming party. Hitoshi moved with practiced efficiency, the ritual of grinding beans and steaming milk acting as a secondary grounding wire.

Denki appeared a few minutes later, wearing only a pair of flannel pajama pants and a lopsided grin. He hopped onto the kitchen counter, swinging his legs and watching Hitoshi with unabashed adoration.

"You look like a domestic god in that apron, 'Toshi. Very Noir-Chef."

"It’s a black apron, Denki. It doesn't have a genre." Hitoshi handed him a mug of coffee—mostly milk and sugar, just the way Denki liked it. "And get off the counter. We have chairs for a reason."

"Chairs are for people who don't have a human battery for a husband," Denki chirped, taking a long sip of his drink and letting out a contented sigh.

As the smell of frying batter filled the air, the conversation drifted toward the mundane. They talked about the upcoming joint training session with Class 1-B, the fact that Bakugou had apparently started a gardening hobby to "manage his stress," and the lingering question of what to get Eri for her birthday.

"I think we should get her a cat," Denki said, his eyes lighting up. "A fluffy one. Like you, but smaller and less grumpy."

"I am not a cat, and Eri is already busy enough with school. Aizawa-sensei would kill us if we brought more chaos into his house."

"He’d pretend to be mad, but then we’d find him three hours later napping with the kitten in his scarf. You know I’m right."

Hitoshi sighed because Denki *was* right. Underneath the gruff exterior, their former teacher was a pushover for anything soft and vulnerable—much like Hitoshi himself.

They ate at the small wooden table by the window, the sun now high enough to illuminate the dust motes dancing in the air. It was a quiet, beautiful moment of normalcy. To the public, they were Chargebolt and Mind Jack, the high-voltage duo who had helped turn the tide in the final war. But here, they were just Hitoshi and Denki, two guys who argued over the correct way to fold laundry and who got to pick the movie on Friday nights.

"Hey, Hitoshi?" Denki said, his expression turning uncharacteristically serious as he poked at a stray chocolate chip.

"Yeah?"

"Do you ever... do you ever miss the noise?" Denki looked up, his golden eyes searching Hitoshi’s. "Sometimes I worry that I’m too much. That the static and the sparks and the... well, me... is too loud for someone who likes the quiet as much as you do."

Hitoshi set his fork down. He reached across the table, taking Denki’s hand in his. He squeezed firmly, feeling the faint, familiar tingle of electricity.

"Denki, look at me."

Denki obeyed, his gaze wary but hopeful.

"The world is loud," Hitoshi said, his voice steady and full of conviction. "The villains, the press, the expectations—that’s the noise I hate. But you? You aren't noise. You’re the music. You’re the only thing that makes the silence feel like a choice rather than a prison. I don't want a quiet life if you aren't in it to break the tension."

Denki’s eyes brimmed with tears, a wide, wobbling smile breaking across his face. "Wow. That was actually really smooth, 'Toshi. You’ve been practicing your monologues."

"I have not. Shut up and eat your sugar-bread." Hitoshi felt the heat rising in his cheeks, and he quickly looked back down at his plate.

"I love you too," Denki laughed, leaning over the table to plant a messy, syrup-flavored kiss on Hitoshi’s cheek.

The rest of the afternoon was spent in a state of productive laziness. They tackled the mountain of laundry that had accumulated over the week, turned the living room into a temporary fortress of blankets and pillows, and started a marathon of a cheesy pre-quirk era sitcom that Denki was obsessed with.

As the sun began to set, painting the sky in bruises of purple and orange, Hitoshi found himself sitting on the floor between Denki’s legs, leaning back against the sofa. Denki was idly playing with Hitoshi’s violet hair, his fingers weaving small, messy braids that would inevitably fall out in ten minutes.

"We have to go back tomorrow," Denki whispered, his voice tinged with a hint of regret. "The agency meeting is at eight. Endeavor is visiting for a strategy briefing."

"I know," Hitoshi said, closing his eyes. "The world doesn't stop for us."

"But we have this," Denki said, his hands coming down to rest on Hitoshi’s shoulders. "No matter how many villains we fight or how much the public yells, we always have this apartment. We have the cats, the terrible coffee, and the extra-spicy Thai food."

"And the static," Hitoshi added, reaching back to touch Denki’s cheek.

"And the static," Denki agreed.

Hitoshi realized then that his initial fear of being "unworthy" of happiness was a ghost from a past life. He didn't need to prove his worth to the world anymore. He didn't need to be the perfect hero or the perfect person. He just needed to be the man who came home to Denki Kaminari.

The weight of the "villainous" quirk, the chip on his shoulder, the years of isolation—it all felt small compared to the warmth of the body behind him. He was a hero, yes. He was Mind Jack, the strategist, the shadow. But more importantly, he was Hitoshi, the man who was loved by the sun itself.

"Let’s go to bed early," Hitoshi suggested, turning around to look at Denki. "I want to steal all the covers before the alarm goes off."

"Challenge accepted!" Denki scrambled off the sofa, racing toward the bedroom with a burst of speed that made the lights flicker.

Hitoshi followed at a more measured pace, a small smile playing on his lips. He paused at the doorway, looking back at the living room. It was messy, lived-in, and full of the chaotic energy of two people who had finally found where they belonged.

He clicked off the light, plunging the room into darkness, and stepped into the bedroom where the light was already waiting for him. The door clicked shut, sealing out the rest of the world, leaving only the silk, the static, and the promise of a thousand more Sundays just like this one.

In the quiet of the night, as they drifted off to sleep, the last thing Hitoshi felt was the steady, grounding hum of a high-voltage heart beating in perfect time with his own. They were heroes out there, but in here, they were simply everything to each other. And for Hitoshi Shinsou, that was the only validation he would ever need.