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Chuuya Nakahara wasn’t blind. He knew what people said behind his back. Knew the way they glanced, then whispered, when he walked into a room with Dazai trailing behind him like a shadow that didn’t quite fit the shape of the world.
He knew what people thought: Why him?
Why the weird kid who flinched at sudden noises and wore noise-canceling headphones when the hallway got too loud? Why the boy who never looked anyone in the eye for longer than a few seconds, who muttered strange facts about architecture under his breath and refused to sit on cafeteria chairs that wobbled even the tiniest bit?
Why the boy who didn’t know how to smile right, who didn’t join games during recess, who clung to his routine like it was the only solid thing in the world?
Because Chuuya saw him. That’s why.
And maybe that made Chuuya a little weird too.
They met back when Chuuya was seven, and Dazai had been the kid sitting on the curb with his knees drawn up to his chest and a book too big for his lap.
Other kids ignored him—or worse, didn’t.
Chuuya remembered the sound of someone calling Dazai stupid. Remembered the way Dazai hadn’t reacted, not really, just blinked and kept talking about suspension bridges to the empty air. Remembered how the laughter around him had felt mean and heavy in the summer heat.
So Chuuya shoved the other kid into the pavement, spit out something nasty, and took the fall like he always would. He didn’t know Dazai’s name back then. He just knew the other boy didn’t deserve it.
They’d been inseparable since.
The morning sun always hit the red brick of the school building at an angle that made Chuuya squint. It was eight in the morning, and the courtyard was a chaotic sea of navy-blue uniforms, shouting boys, and girls laughing in tight, impenetrable circles.
Chuuya stood by the gate, one foot propped against the iron railing, his hands buried deep in his pockets. He was waiting.
Precisely three minutes before the final bell—never four, never two—a slender figure materialized around the corner of the block.
Dazai walked with a strange, deliberate rhythm, his gaze fixed firmly on the concrete three feet ahead of him. His hands were tucked into his sleeves, his fingers wrapped tightly around the plastic edge of a Hello Kitty keychain that dangled from his bag. The white noise-canceling headphones were firmly clamped over his ears, the small LED light blinking a steady, reassuring green.
Chuuya didn't move. He just waited until Dazai reached his side.
Dazai stopped. He didn’t look up immediately. Instead, his eyes tracked the toe of Chuuya’s shoe, ensuring it was exactly where it usually was next to the railing.
"The wind is blowing from the northeast at twelve kilometers per hour," Dazai said, his voice flat, devoid of the standard morning greetings. "The humidity is forty-two percent. The school gate has a slight misalignment in its left hinge. It will likely fail by October."
Chuuya let out a short huff, pulling his hands from his pockets. "Morning to you too, idiot. Let's go before the bell hits."
They walked through the doors together. As they entered the main hallway, the noise level spiked. Locker doors slammed, shoes squeaked on waxed floors, and a hundred different conversations bounced off the concrete walls.
Chuuya watched Dazai out of the corner of his eye.
He saw the subtle tightening of Dazai’s jaw. The way his shoulders hunched inward, trying to occupy less space, trying to build a wall out of his own bones. Dazai’s fingers twitched against his keychain, clicking the small plastic figure against his thumb over and over.
Click. Click. Click.
A group of older boys came running down the hall, laughing loudly, their shoulders brushing past people carelessly. One of them bumped into Dazai’s shoulder.
It wasn't a hard hit, but Dazai stopped dead in his tracks. His eyes widened, staring at the spot where the fabric of his uniform had been touched. The steady rhythm of his world had been broken.
"Hey! Look where you're going!" Chuuya snapped at the retreating backs of the older boys, his fist instantly clenching.
The boys didn't even look back, disappearing into a classroom.
Chuuya turned to Dazai. He didn't touch him. He knew better than to touch him when the hallway was this loud. Instead, Chuuya stepped into Dazai's line of sight, blocking out the rest of the crowded corridor.
"Hey," Chuuya said, his voice dropping an octave, solid and grounded. "Look at my collar. Just the button."
Dazai’s eyes flickered up, landing on the small, brass button of Chuuya’s school jacket. His breathing was shallow, his fingers freezing on the keychain.
"We have five steps to the classroom door," Chuuya said smoothly, counting it out in his head. "One, two, three, four, five. The desk is clean. The chair doesn't wobble. I checked it yesterday."
Dazai blinked. The rigid tension in his neck didn't vanish, but it shifted. He took a slow, deliberate breath, matching Chuuya's stride as they moved past the whispering onlookers and into the safety of the classroom.
Dazai wasn’t easy to be around, not for most people. He didn’t follow social rules the way others did. He said strange things at the wrong time. Got overwhelmed in crowds. Lined his pencils up by length and wouldn’t eat if someone messed with his lunch arrangement.
His world ran on logic and patterns—on routines so rigid they could snap.
But Chuuya learned those patterns. Memorized the routines. Built himself into the spaces where Dazai needed quiet, or distance, or someone who wouldn’t ask questions when he curled up in Chuuya’s closet and needed the dark to breathe again.
He got it. Or, at least, he tried.
During third period, the teacher was droning on about classical literature, but Chuuya wasn't listening. He was watching the back of Dazai's head two rows in front of him.
Dazai was staring out the window, his pencil moving with terrifying speed across the margins of his notebook. He wasn't taking notes on the lesson. Chuuya knew exactly what he was drawing: blueprints. Bridges, towers, structural load diagrams. Dazai could visualize the weight of the world distributed across steel beams, but he couldn't figure out how to talk to the guy sitting next to him.
At lunch, the cafeteria was an absolute nightmare of sensory overload. The smell of fried food, the clatter of plastic trays, the sheer volume of voices.
They didn't even try to go inside.
Instead, they sat out by the chain-link fence at the far edge of the sports field. It was a dusty, forgotten corner where the grass grew tall and untamed.
Dazai sat with his back pressed against the metal fence, his legs crossed perfectly. He opened his lunchbox. It was a precise arrangement: three rice balls, exactly equal in size, placed parallel to each other. Beside them sat two cherry tomatoes and a small container of soy sauce.
Chuuya leaned back on his elbows, cracking open a soda can with a loud pop.
Dazai flinched slightly at the sound, then relaxed when he recognized what it was. He picked up his first rice ball, holding it with two fingers, taking a small, calculated bite.
"The structural integrity of the old library downtown is compromised," Dazai stated casually, staring at the dirt between his shoes. "They used standard concrete aggregates in 1968, but the moisture retention in this region causes micro-fissures over a fifty-year timeline. It will eventually collapse inward from the western corner."
Chuuya swallowed a mouthful of soda. "Is that why you refused to go inside last week when we went to return those books?"
"Obviously," Dazai muttered, his eyes tracking a line of ants moving through the dirt. "Entering a structure with a high probability of localized failure is illogical."
"You could've just told me that," Chuuya said, a small smile tugging at the corner of his mouth. "Instead of sitting on the curb for two hours like a gargoyle."
"Gargoyles are designed to divert rainwater away from masonry walls," Dazai corrected instantly, his tone perfectly serious. "I was not diverting rainwater. I was waiting for you."
Chuuya looked away, staring out across the empty sports field. The wind caught the red strands of his hair, blowing them across his eyes. "Yeah. I know."
Chuuya could’ve been popular. He heard that a lot—from girls who passed notes with hearts on them, from classmates who whispered when they thought he couldn’t hear. He had the kind of face that stood out and the kind of voice that didn’t back down. He was fast on the track, good with his fists, and possessed a fierce, burning confidence that drew people in.
But none of that mattered when you were the guy who stuck by Dazai Osamu.
People didn’t want complicated. They wanted cool.
And Dazai, with his bandaged fingers—wrapped tightly to keep the texture of certain surfaces from touching his skin—and his blank stares and his sudden bursts of sharp, too-smart observations, was complicated.
"Hey, Nakahara."
Chuuya turned around. It was after school, and he was tying his shoes by the locker area. Dazai was a few feet away, meticulously cleaning his glasses with a specific microfiber cloth he kept in his left pocket.
Two guys from the basketball team were standing near the exit, leaning against the wall with smirked expressions. One of them, a tall kid named Tanaka, gestured toward Chuuya.
"We're heading to the arcade down by the station," Tanaka said, his voice loud, casual, but with an underlying edge. "They just got the new fighting game. You should come. You're pretty good at those, right?"
Chuuya tightened the laces of his sneaker. "Can't. Busy."
Tanaka glanced at Dazai, who was still entirely focused on his glasses, seemingly oblivious to the conversation. Tanaka chuckled, a low, irritating sound. "Come on, man. You're always 'busy.' Why do you waste your time hanging around the ghost? He doesn't even know you're there half the time."
The locker room went completely silent.
Chuuya stood up. He didn't do it slowly. He snapped up like a spring under tension, his blue eyes narrowing down into ice. The air in the room suddenly felt heavy.
"What did you just say?" Chuuya’s voice was dangerously quiet.
Tanaka held up his hands, though the smirk stayed on his face. "Just saying, Nakahara. You could actually have a life. You don't have to babysit the freak."
Chuuya took a step forward, his fists clenching so hard his knuckles turned white. The familiar, hot rush of anger flooded his chest. He was more than ready to put Tanaka through the drywall. He didn't care about suspension; he didn't care about the rules.
Before he could swing, a light, cold touch brushed against the edge of his sleeve.
It wasn't a grab. It was just a single, tentative pull on the fabric of his blazer.
Chuuya froze. He looked back.
Dazai had put his glasses back on. He wasn't looking at Tanaka. He was looking at the floor, his fingers still holding a tiny fraction of Chuuya’s sleeve.
"The train leaves in eleven minutes," Dazai said, his voice completely level, completely flat. "If we miss it, the next arrival is delayed by twenty-four minutes due to track maintenance on the loop line. That will disrupt the dinner schedule by exactly twenty minutes."
Chuuya stared at Dazai. He saw the slight tremor in Dazai's lower lip. He saw the way Dazai's eyes were darting toward the exit, desperate for the quiet of the open air.
The anger in Chuuya's chest didn't vanish, but it redirected. It transformed from a destructive fire into something protective, solid, and cold.
Chuuya turned back to Tanaka. He didn't raise his voice.
"Get out of my way," Chuuya said.
Tanaka blinked, the smirk finally fading under the sheer intensity of Chuuya's glare. He mumbled something under his breath and stepped aside, letting them pass.
Chuuya didn't look back. He walked out into the afternoon sun, Dazai trailing exactly one step behind him, a shadow that belonged to him and no one else.
The walk to the train station was quiet. The sun was dipping lower, casting long, dramatic shadows across the asphalt. The sound of their footsteps provided a rhythmic background to the evening traffic.
"You wanted to hit him," Dazai said suddenly.
Chuuya kept his eyes on the road ahead. "Yeah. I did. He’s an idiot."
"Hitting him would have resulted in a physical altercation, leading to a minimum of three days of suspension for you," Dazai noted, his voice carrying its usual analytical weight. "It would have altered your academic record. It would have caused an administrative complication."
"I don't give a shit about an administrative complication," Chuuya grumbled, kicking a small pebble out of his path. "He was talking garbage."
"He was accurate in his assessment of social perception," Dazai said quietly.
Chuuya stopped. They were on the pedestrian bridge now, the train tracks running far below them. The wind blew hard up here, rattling the metal fences.
Chuuya grabbed Dazai by the shoulder—firmly enough to make him listen, but gentle enough not to startle him. He forced Dazai to look at him, even if Dazai's eyes only made it to Chuuya's nose.
"Listen to me, you moron," Chuuya said, his voice fierce. "I don't care what Tanaka thinks. I don't care what the whole damn school thinks. I don't hang out with you because I have to. I hang out with you because I want to."
Dazai stood completely still. His eyes shifted slightly, finally meeting Chuuya's blue gaze for a fraction of a second before looking down at the metal grating of the bridge.
"You are loud," Dazai muttered. "And you have no appreciation for classical architecture."
"Yeah, yeah," Chuuya sighed, letting go of his shoulder and turning back toward the station. "And you're a pain in the ass who reads textbooks for fun. We're even."
When they finally reached Chuuya's house, the sky had turned a deep, bruised purple.
The front door opened to the smell of stew. Kouyou was in the kitchen, her long hair tied back, a wooden spoon in her hand. She looked up as the front door clicked shut.
"You're late, Chuuya," she said, though her tone wasn't angry. Then her eyes drifted to the figure standing just inside the entryway, carefully removing his shoes and placing them exactly parallel to the baseboard.
Kouyou let out a soft, familiar sigh. "Hello, Osamu."
Dazai didn't look up, but he gave a small, polite nod toward the kitchen. "Good evening, Miss Kouyou. The atmospheric pressure is dropping. It will rain by 2:00 AM."
"Is that so? Then I'm glad you're inside," she replied smoothly, turning back to her cooking.
A few minutes later, Chuuya’s dad grumbled his way into the living room, a newspaper tucked under his arm. He looked at Dazai, who had already taken his usual spot on the far corner of the couch, his knees pulled up to his chest, staring intently at a wooden puzzle on the coffee table.
The older man shook his head, leaning over to Chuuya as he passed. "That boy gives me a bad feeling, Chuuya. Too quiet. Like a storm waiting to happen."
"He's just thinking, Dad," Chuuya said defensively, his voice low so it wouldn't carry across the room. "Leave him alone."
"Teachers are calling the house, you know," his dad muttered, sitting down in his armchair. "Saying you're isolating yourself. Saying you're throwing away your potential by acting like a bodyguard for a kid who won't even look people in the eye."
Chuuya didn't answer. He just walked over to the couch and sat down next to Dazai.
He didn't sit too close, leaving exactly three inches of space between their shoulders—Dazai's preferred distance. He reached into his bag, pulled out his homework, and laid it out on the table.
Dazai didn't look up from his puzzle, but his fingers steadied. The slight, anxious tension that always lingered around him when he was in a house that wasn't his own began to melt away.
Later that night, after dinner, the house went dark.
Chuuya woke up to the sound of thunder. The rain was pouring now, heavy and relentless, beating against his bedroom window like a thousand tiny fingers trying to get in.
He sat up, rubbing his eyes. He listened closely.
Through the sound of the rain, he heard it. A faint, rhythmic scratching sound coming from inside his closet.
Chuuya slid out of bed, his bare feet cold against the hardwood floor. He walked over to the closet door and pulled it open slowly.
Dazai was sitting on the floor of the closet, surrounded by Chuuya’s winter coats. He had his noise-canceling headphones on, but the battery had died; the green light was out. He was holding his knees, his forehead pressed against his shins, rocking slightly back and forth.
The thunder cracked outside, a sharp, violent boom that shook the house.
Dazai flinched violently, a small, choked sound escaping his throat.
Chuuya didn't say anything. He didn't try to pull Dazai out. Instead, he grabbed his spare blanket from the bed, climbed into the closet, and sat down on the floor opposite him. He pulled the closet door shut, plunging them into total darkness.
In the dark, the noise of the rain was muffled. The world shrank down to the size of a small wooden box.
Chuuya reached out in the dark, finding the edge of Dazai's sleeve. He didn't hold his hand; he just held the fabric, solid and steady.
"It's just water, Dazai," Chuuya said softly into the dark. "The house was built in 1994. It has a reinforced concrete foundation and a load-bearing frame. It's not going anywhere."
He waited.
For a long time, there was only the sound of Dazai’s ragged breathing and the distant rumble of the storm.
Then, slowly, the rocking stopped.
In the pitch black, Chuuya felt a slight movement. Dazai shifted, his shoulder leaning lightly against Chuuya's. It was a rare, deliberate gesture of contact.
"1992," Dazai whispered, his voice small, exhausted, but calm. "The house was built in 1992. The permit was issued in December of the previous year."
Chuuya smiled in the dark, tightening his grip on the fabric of Dazai's sleeve.
"Right," Chuuya said. "1992. My bad."
People looked at Chuuya like he was throwing his life away by standing next to that kid. They saw a burden. They saw a tragedy. They saw a waste of time.
But Chuuya never apologized for it.
Because they didn't know the Dazai who could draw an entire city skyline from memory. They didn't know the Dazai who noticed when Chuuya was tired before Chuuya even realized it himself. They didn't know the quiet, unyielding loyalty of a boy who lived in a world that was entirely too loud, but always managed to make space for one specific person.
The storm raged outside, shaking the windows and flooding the streets, but inside the small, dark closet, the world was perfectly balanced.
And Chuuya never would look back.