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Chapter 11: The Midnight Leash

The park was a symphony of green and gold under the late morning sun. Light filtered through the canopy of cherry blossoms, their delicate pink petals a stark contrast against the clear blue sky. The air smelled of damp earth, fresh grass, and the faint, sugary scent of cotton candy from a vendor’s cart near the playground. Children shrieked with laughter, chasing kites that dipped and soared in the warm breeze. Along the main path, a vibrant tapestry of life unfolded: joggers with determined faces, elderly couples on benches, and scattered throughout, hybrids of all breeds enjoying the day with their owners.

Near a large oak tree, slightly apart from the busiest thoroughfare, Shouta Aizawa stood like a granite monument in a sea of gentle movement. He was dressed in simple, expensive black sweatpants and a tight grey t-shirt that strained across his chest and shoulders, his long hair tied back in a messy knot. In his arms, held firmly against his hip, was Izuku.

The hybrid was a vision of pristine white against Shouta’s dark clothing. He wore a soft, cream-colored knitted sweater and matching leggings, his hair loose and flowing. His tail hung down, the very tip twitching with anxious curiosity. His large, pale blue eyes were fixed on the ground with a look of profound distrust.

The ground here was problematic. Yesterday’s rain had left generous patches of soft, wet earth between the grasses, perfect for sinking into. A group of hybrids played nearby—a boisterous Labrador mix was enthusiastically digging in a particularly muddy spot, sending clumps flying, while a sleek Doberman hybrid elegantly stepped through a puddle without a care.

Shouta shifted his grip, his large hands spanning Izuku’s tiny waist. “Alright, puppy. Time to stretch your legs.” His voice was a low rumble, meant to be soothing.

He began to lower Izuku toward a relatively dry-looking patch of grass bordered by dark, moist soil. The moment Izuku’s fluffy white paw came within six inches of the ground, he jerked it back up, tucking it against his chest with a soft, distressed whine.

Shouta paused. He adjusted his stance, aiming for a spot that seemed firmer. He lowered again. Izuku’s other paw lifted, recoiling as if the very air above the dirt was contaminated.

“Izuku,” Shouta said, a thread of exasperation weaving into his tone. “C’mon. Look at the other puppies, they’re having fun.” He nodded toward the playing group. The Labrador hybrid, now gloriously coated in mud, shook itself, spraying droplets in a wide, joyful arc.

Izuku glanced over, his nose wrinkling. He buried his face in Shouta’s neck, emitting a low, continuous whimper. His message was clear: Absolutely not.

From a few feet away, leaning against the oak tree with his arms crossed, Katsuki let out a loud, unfiltered snort. He was wearing athletic shorts and a tank top, his muscular arms on full display. A slight, amused smirk played on his lips. “Look at him. Prince of the goddamn pristine tundra. One spec of dirt and he acts like it’s acid.”

“He’s just being careful,” Shouta replied, though his patience was clearly thinning. He hoisted Izuku back up into a secure carry, the hybrid immediately wrapping his limbs around Shouta’s torso like a koala. “He doesn’t like the feeling.”

“Doesn’t like the feeling,” Katsuki echoed, pushing off from the tree. He walked over, his sneakers sinking slightly into the soft turf. “This might be Papa’s doing. You know. The whole ‘germs are a social construct, but also don’t you dare touch that public handrail’ thing he’s got going on.”

Shouta raised a single, dark eyebrow. He looked from Izuku’s terrified, beautiful face to his smirking son. “You don’t say.”

“I do say. Remember when I was like, ten, and I fell in that mud pit at the soccer finals? He made me strip in the garage and hosed me down like I was a contaminated bio-weapon before I was even allowed to sniff the front door.” Katsuki shook his head, the memory vivid. “Izu’s probably absorbed it through osmosis. Or through all those obsessive grooming sessions.”

It was true. Hizashi’s care for Izuku was fastidious. The brushing, the bathing, the specific, pH-balanced wipes for his paws after even a short walk on clean pavement. It was born from love, from a desire to maintain the hybrid’s exquisite beauty and health, but the side effect was a creature who viewed untamed nature with deep suspicion.

Shouta sighed, a deep, weary sound from his chest. He bounced Izuku gently, feeling the hybrid’s tense muscles. “He needs to run. He’s been cooped up. You need exercise, don’t you, puppy?” He scratched behind one silky ear, and Izuku leaned into the touch, but his grip didn’t loosen.

“I can run with him,” Katsuki offered, shrugging. “Carry him to the path. It’s paved over there by the lake. He’ll walk on that.”

“He’ll walk two feet on the pavement and then demand to be carried the moment he sees a duck,” Shouta predicted. But it was the only viable option. He wasn’t going to force Izuku into the mud; the resulting emotional meltdown would be more trouble than it was worth. He adjusted his hold and began walking toward the paved path that circled the artificial lake, Katsuki falling into step beside him.

The lake path was cleaner, bustling with more human traffic. Izuku relaxed marginally, his nose lifting to sniff the air, catching traces of popcorn and lake water. Shouta set him down on the smooth grey concrete. Izuku placed one paw, then the other, testing the surface. It was solid. Acceptable. He took a tentative step, then another, his tail beginning a slow, tentative wag.

“See? Good boy,” Shouta said, his stern expression softening.

They walked, Izuku trotting between them, his steps quick and light. He stayed close to Shouta’s leg, occasionally brushing against it. He watched everything: the swans gliding on the water, a child dropping an ice cream cone, an older hybrid being pushed in a specially-designed stroller. For a few minutes, it was peaceful.

Then they reached a section where a downspout from a nearby drinking fountain had overflowed, creating a wide, shallow puddle that spanned the entire path. It wasn’t deep, maybe half an inch, but it was muddy water, littered with stray cherry blossoms and a few soggy leaves.

Izuku stopped dead. His ears swiveled forward, then pinned back. He let out a sharp, warning whine.

“It’s just water, Izu,” Katsuki said, stepping right through it. His sneakers splashed, sending up small sprays. “Come on. It’s cool. Refreshing.”

Izuku shook his head violently, taking a step back and bumping into Shouta’s shin. He looked up at his daddy, eyes wide and pleading. Save me.

Shouta looked at the puddle. He looked at the long way around through the damp, potentially muddier grass. He looked at Izuku’s terrified face. A profound sense of futility settled over him. He was a man who negotiated multi-billion-dollar mergers before breakfast, who commanded boardrooms full of intimidatingly smart people, and here he was, defeated by twenty square feet of sidewalk water.

“Katsuki,” he said, his voice flat.

“Yeah, Dad?”

“We’re going home.”

Katsuki blinked, standing in the middle of the puddle. “What? Seriously? We just got here.”

“He’s not going to walk through that. I’m not carrying him through that and getting his sweater soaked. And I’m not walking through the grass and having a repeat of the first performance.” Shouta bent down, his knees popping faintly, and gathered Izuku up again. Izuku went willingly, nuzzling into his neck with a relieved sigh, as if to say, Finally, you understand.

“Unbelievable,” Katsuki muttered, but he was smiling as he sloshed out of the puddle. “He’s the most high-maintenance creature on the planet. And Papa’s created a monster.”

“Your Papa,” Shouta said, starting the long walk back to where the car and driver waited at the park’s edge, “adores his monster. And so do I. Even when he’s a brat.”

The car was a sleek, black SUV with dark-tinted windows. The driver, a man in a crisp suit, opened the door without a word. Shouta ducked inside, settling Izuku on the pristine leather seat beside him. Katsuki climbed in the other side, his wet sneakers leaving faint damp marks on the floor mat.

Izuku, now that the ordeal was over, became playful. He kneaded the soft leather with his paws, his earlier distress forgotten. He was going home, to his clean, safe spaces.

Katsuki pulled out his phone, typing rapidly. “Gonna tell Papa his baby boy rejected the entirety of the natural world. He’ll be so proud.”

“Don’t you dare,” Shouta grumbled, but he knew it was too late.

The mansion was a silent, cool haven after the bright chaos of the park. Shouta shouldered open the heavy front door, Izuku still in his arms. He stepped into the grand foyer, its marble floors shining like ice.

He took two steps.

“Stop!”

The voice was sharp, crystalline, and echoed in the vast space. Hizashi stood at the entrance to the living room, having just descended the main staircase. He was dressed in fitted, cream-colored linen trousers and a loose silk shirt, his blonde hair a perfect cascade. He looked like he’d stepped out of a magazine spread. His warm green eyes were wide, fixated not on his husband or his son, but on the floor.

Shouta froze, one foot still raised. He looked down. A clump of dark, wet park mud, roughly the size and shape of a cookie, was smeared on the pale cream marble. A trail of smaller, fainter footprints led back to the door from Katsuki’s sneakers.

Hizashi’s expression was one of pure, unadulterated scandal. He stared at the mud as if it were a dead rodent. “What… is that?”

“It’s mud, Papa,” Katsuki said cheerfully, kicking off his shoes by the door. “Comes from the ground. Outside. Where dirt and water mix.”

“Do not be glib with me, Katsuki Aizawa,” Hizashi said, not taking his eyes off the offending spot. He finally looked up at Shouta, his gaze traveling from his husband’s face to the hybrid in his arms. “Shouta. You are tracking it.”

“It was on my shoe,” Shouta said, stating the obvious with deadpan delivery.

“I can see that. Why is it inside? On the Carrara marble?” Hizashi moved forward with a fluid, horrified grace. He didn’t approach Shouta. Instead, he descended upon Izuku, his hands outstretched. “Give him to me. Immediately.”

Shouta, recognizing the tone of absolute, unassailable authority, carefully transferred Izuku into Hizashi’s waiting arms. Hizashi cradled him, inspecting him from head to toe. He lifted one of Izuku’s paws, examining the pristine white fur. “Did you touch it?” he asked Izuku, his voice softening to a coo. “Did the nasty ground try to get on you?”

Izuku, sensing an ally, shook his head and whimpered pitifully, nuzzling Hizashi’s chin.

“He didn’t touch a thing,” Katsuki supplied, dropping onto a pristine white sofa in the living room, earning a withering glance from Hizashi for his potentially-damp clothes. “He did his ‘the floor is lava’ routine the whole time. Dad finally gave up. It was kinda hilarious.”

Hizashi shot Shouta a look that was both triumphant and accusatory. “You see? He knows. He has an instinct for cleanliness.” He turned his attention back to the mud. “That… needs to be dealt with. Now.” He looked at Shouta’s shoes. “You. Outside. Off. Now.”

Shouta didn’t argue. He’d known this would be the outcome. He walked back to the front door, stepping carefully, sat on the stoop, and removed his muddy sneakers, leaving them outside. He walked back in in his socks. Hizashi watched him, Izuku still in his arms.

“Socks too. They’re contaminated by proximity.”

Shouta peeled off his socks, adding them to a mental list of casualties. He stood on the cool marble in bare feet. “Satisfied?”

“No. I am traumatized. My home has been violated by… earth.” Hizashi shifted Izuku’s weight. “I’m taking him for a decontamination bath. Not because he’s dirty,” he assured the hybrid, kissing his forehead, “but because the air out there was doubtless full of pollutants. Katsuki, you will shower. Immediately. And for god’s sake, don’t sit on the upholstery with your park pants.”

Katsuki rolled his eyes but pushed himself up. “Yes, Papa.”

Hizashi swept away toward the grand staircase that led to the family’s private wing, murmuring sweet nothings to Izuku about lavender bath salts and special conditioner.

Shouta stood in the foyer, a giant of a man in bare feet on cold marble, watching his husband disappear. He looked at the mud stain. He looked at Katsuki’s retreating back.

“He denies being a germaphobe,” Shouta said, to no one in particular.

From the top of the stairs, Hitoshi’s slow, dry voice floated down. He was leaning over the railing, having witnessed the entire scene, a bag of chips in his hand. “It’s not a phobia, Dad. It’s an ‘aesthetic and biological standard.’ He told me that last week when I tried to eat an apple without washing it first.” He crunched a chip. “How was the park?”

“Wet,” Shouta said, running a hand through his hair. “Izuku hated it. I capitulated. Your father is now performing a forensic cleaning.”

“Sounds about right.” Hitoshi descended the stairs, his movements languid. He was wearing ripped black jeans and a band t-shirt so faded the logo was illegible. He stopped by the mud, looked at it, and took a careful step over it. “Want me to get someone to clean that up before he has a conniption?”

“Please.”

Hitoshi pulled out his phone, sent a quick text to the household staff, and then wandered toward the kitchen. “We ordered sushi for lunch. Since fish is so healthy and balanced.”

Shouta almost smiled. The callback to the previous night’s dinner was not lost on him. This was their rhythm. The minor crises, the exaggerated reactions, the underlying, unshakable foundation. He padded into the living room, sinking into an armchair that didn’t match the white sofa, chosen specifically for its durability and comfort.

Upstairs, in the enormous master bathroom done in sea-green tile and brushed nickel, Hizashi had filled the sunken tub with warm, fragrant water. Bubbles and lavender-scented steam filled the air. Izuku sat on the bath stool, compliant and happy as Hizashi carefully removed his soft sweater and leggings.

“There we go, my beautiful boy. No more nasty outside,” Hizashi murmured, his fingers gentle as they undid the velvet collar, setting it aside on a dry towel. He helped Izuku into the tub. The hybrid sank into the water with a deep, happy sigh, his tail sending a small wave over the edge. He began to play with the bubbles, patting them with his paws.

Hizashi knelt by the tub, rolling up his silk sleeves. He took a washcloth and began to meticulously lather Izuku’s back. “Your daddy is a wonderful man, but he has the subtlety of a bulldozer. Bringing the outside in. Tsk.”

“Daddy good,” Izuku said softly, his vocabulary limited but his meaning clear.

“Oh, I know, sweetheart. He’s the best. But best doesn’t mean he understands the importance of a clean threshold.” He poured a small amount of expensive, pearlescent shampoo into his palm and began massaging it into Izuku’s scalp, working around the base of his sensitive ears. Izuku’s eyes fluttered closed, a low, contented rumble starting in his chest—a hybrid’s version of a purr.

Later, cleaned, dried, and fluffed to an impossible degree of softness, Izuku was dressed in fresh, soft pajamas and deposited onto the giant bed in the master suite. Hizashi joined Shouta downstairs in the kitchen, where Katsuki, now showered and in clean clothes, and Hitoshi were already devouring platters of sashimi and nigiri.