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Under The Sakura Tree

Fandom: Naruto & Yandere Simulator Inspired

Created: 6/20/2026

Tags

DarkPsychological HorrorThrillerCrimeGraphic ViolenceCharacter DeathJealousyDramaAngstAU (Alternate Universe)TragedyCharacter StudyPsychologicalHorrorDrug UseMystery
Contents

Petals of the Hollow Sun

The air in Konoha Academy always smelled of floor wax and expensive perfume, a sterile combination that Sasuke Uchiha found tolerable only because it was predictable. He sat in his usual seat—third row, window side—watching the morning light fracture against the glass. At eighteen, Sasuke was a masterpiece of discipline. His posture was perfect, his notes were immaculate, and his reputation as the Student Council President was unassailable. He was the heir to the Uchiha fortune, a national kendo champion, and a ghost in his own life.

Until the doors to the classroom swung open, and the world finally gained its color.

"Sorry I’m late! The alarm clock—well, it didn't exactly go off, or maybe I just didn't hear it, ya know?"

Naruto Uzumaki stood in the doorway, breathless and grinning. His blond hair was a chaotic mess, his tie was knotted poorly, and his presence felt like a physical heat. He had transferred to the academy exactly one month ago, a scholarship student from a background that didn't fit the Uchiha's social circle.

Sasuke didn't move. He didn't blink. But inside, his pulse spiked with a violence that made his fingertips tremble. He gripped his pen until the plastic groaned.

*Naruto.*

The name was a prayer and a curse. Before Naruto, Sasuke’s world was a gray, hollow routine. He was a vessel for his family’s expectations, a machine designed for perfection. Then came the loud, clumsy, and impossibly bright boy who didn't know how to be quiet. Sasuke’s obsession hadn't been a slow burn; it had been an instantaneous combustion.

He remembered the first week. He had tried to be normal. He had approached Naruto near the lockers, intending to offer "guidance" as the Student Council President. But the moment Naruto turned those sapphire eyes toward him, Sasuke’s mind had fractured.

The "Yandere Simulator" effect, as he would later think of it in his darker moments, was paralyzing. His heart beat so loudly he was certain Naruto could hear it. His vision blurred at the edges, turning a soft, nauseating pink. He had dropped his clipboard, the papers scattering like dying birds. He couldn't speak; his throat had closed as if gripped by an invisible hand.

"Whoa, you okay, President?" Naruto had asked, leaning in close. Too close. The scent of citrus and sweat had hit Sasuke like a drug.

Sasuke had backed away, his face a mask of cold horror that Naruto misinterpreted as disgust. He had fled to the restroom, where he proceeded to scrub his skin until it was raw, weeping silently in a stall because he was too weak to even say "hello" to his sun.

Now, a month later, Sasuke had learned to hide it better. He watched Naruto navigate the room, high-fiving Kiba and laughing with Shikamaru. Every interaction Naruto had with another human being felt like a serrated blade across Sasuke’s skin.

*Why are they touching him? Why is he smiling at them? They don't deserve his light.*

Sasuke’s gaze followed Naruto’s every move. He noticed the way Naruto’s tongue poked out when he was concentrating. He noticed the small ink stain on his thumb. He noticed how Naruto’s eyes lingered on Sakura Haruno for a second too long.

A cold, murderous certainty settled in Sasuke’s gut. Sakura. She was a loud, arrogant girl who thought her academic standing gave her a claim to Sasuke, but now she was a threat to what mattered. If Naruto liked her, Sakura had to be erased.

The school day passed in a blur of agonizing observation. Sasuke performed his duties with surgical precision, but his mind was elsewhere. It was in the hidden room of the Uchiha estate—the shrine.

He had spent the previous night there, worshiping. He had a half-eaten apple Naruto had tossed into a bin three weeks ago, preserved in a vacuum-sealed container. He had a pair of Naruto’s gym socks, stolen from the locker room, which he pressed to his face every night to inhale the fading scent of the boy’s life. He had thousands of photos—Naruto laughing, Naruto sleeping in the library, Naruto tripping over a rug.

"Sasuke-kun? Are you listening?"

Sasuke blinked, his dark eyes refocusing on Sakura. She was standing in the Student Council room, leaning over his desk with an affected pout.

"The budget for the Spring Festival needs your signature," she said, her voice high and grating. "And I was thinking... maybe after we’re done, we could grab some tea? My treat."

Sasuke looked at her. He didn't see a girl; he saw an obstacle. He remembered the Truth or Dare game he had overheard in the courtyard yesterday. Naruto had been asked who he would date in the class, and he had rubbed the back of his head, blushing, and said, "I dunno, Sakura’s pretty cute, right?"

The memory made Sasuke’s vision swim with static.

"I am busy, Haruno," Sasuke said, his voice a flat, dead thing. "Leave the papers."

"Oh, come on, you’re always busy!" she persisted, reaching out to touch his hand.

Sasuke recoiled as if she were a leper. "Do not touch me."

Sakura flinched, her eyes filling with hurt. "I just... I thought we were friends, Sasuke."

"We are classmates," he corrected, his surgical precision returning. "Nothing more. Leave."

As she scurried out, Sasuke felt the familiar itch beneath his skin. The need to protect Naruto from the world’s filth was becoming an all-consuming hunger. He pulled out his phone, scrolling through the GPS data he had secretly installed on Naruto’s phone during a "random" security check. Naruto was at Ichiraku Ramen. With Gaara.

The rage that surged through him was blinding. Gaara no Sabaku. The quiet, red-headed boy who looked at Naruto with a terrifyingly safe kind of devotion. Sasuke knew that look. It was the look of a man who was waiting for the right moment to steal the sun.

Sasuke stood up, his chair screeching against the floor. He needed to be closer.

He arrived at Ichiraku twenty minutes later, sitting in the shadows of an alleyway across the street. He watched through the steam of the shop. Naruto was slurping ramen, his cheeks flushed with heat, laughing at something Gaara had said. Gaara reached out, his hand hovering near Naruto’s shoulder, before pulling back.

Sasuke’s breath hitched. He pulled out a small notebook and began to write. *Gaara: High priority. Threat level: Critical.*

He stayed there for hours, a predator in a designer school uniform. When Naruto finally left and headed toward his small, lonely apartment, Sasuke followed. He stayed exactly fifty paces behind, moving with the silence of a ghost.

Suddenly, Naruto stopped. He turned around, squinting into the twilight.

"Hey? Is someone there?"

Sasuke froze, pressing himself into the shadows of a brick wall. His heart was a hammer against his ribs. *Don't look at me. Don't see me. I'm not ready for you to hate me.*

Naruto walked back a few steps, his brow furrowed. "I know I heard something. Sasuke? Is that you?"

Sasuke felt the "Sanity Penalty" hitting him. His mind raced with images of Naruto screaming, of Naruto calling the police, of Naruto looking at him with the same pity he gave to stray dogs. He stepped out of the shadows, his face a mask of cold indifference.

"I was walking home, Uzumaki," Sasuke said, his voice steady despite the chaos in his chest. "This is a public street."

Naruto relaxed, a grin breaking across his face. "Oh! Man, you scared me! I thought I was being stalked by a ghost or something. You live around here?"

"Nearby," Sasuke lied. He lived three miles in the opposite direction.

"Cool, cool. Hey, since you're here... could you maybe... give me a little space? You're kinda walking right on my heels, ya know? It’s a bit creepy."

The word *creepy* shattered Sasuke. It was a physical blow to his solar plexus. He felt the world tilt.

"I apologize," Sasuke managed to choke out. "I was lost in thought."

"No biggie! See ya tomorrow, President!" Naruto waved and turned away, jogging toward his building.

Sasuke stood paralyzed. *Creepy. He thinks I'm creepy.*

He waited until Naruto’s light turned on in the third-floor window. Then, Sasuke collapsed against the wall, his hands clawing at his own arms, drawing blood through the fabric of his blazer. He let out a low, jagged sob. He had failed. He had let the mask slip, and now the sun was wary of him.

He spent the rest of the night in his shrine.

He stripped off his clothes and sat on the floor, surrounded by the stolen relics of Naruto’s existence. He stared at a photo of Naruto at the beach, his skin glowing under the summer sun. Sasuke began to touch himself, his movements frantic and desperate.

"Naruto," he whispered, his eyes rolled back. "You don't understand. I'm doing this for you. I'm the only one who can truly love you. Gaara will hurt you. Sakura will bore you. I will *become* your world."

He imagined Naruto beneath him, tied with silk ropes, those blue eyes wide with the realization that they belonged to Sasuke. He imagined Naruto screaming his name—not in fear, but in a broken, Stockholm-tainted need. He imagined taking Naruto’s virginity, felt the phantom heat of it, and groaned into the empty room.

When he finished, he lay on the cold floor, panting. He looked up at the ceiling, where he had taped a life-sized poster of Naruto’s face.

"I'll fix it," Sasuke promised the paper. "I'll make sure there’s no one left for you to go to. Then you'll have to look at me."

The next morning, the school was buzzing. Hinata Hyuuga, a shy girl from the track team, hadn't shown up for her morning practice. Her locker was found open, a small, unsent love letter addressed to Naruto Uzumaki fluttering on the floor.

Sasuke sat in his seat, his expression as unreadable as stone. He had spent the early hours of the morning cleaning the incinerator in the back of the academy. His hands were spotless. His soul was a void.

"Hey, Sasuke?"

He looked up. Naruto was standing over his desk, looking uncharacteristically somber.

"Yeah?"

"Did you hear about Hinata? She's missing. I'm really worried, ya know? She’s so nice."

Sasuke felt a surge of triumph. Naruto was talking to him. Naruto was sharing his grief with *him*.

"I’m sure she’s fine, Naruto," Sasuke said, using Naruto’s first name for the first time. The way it felt on his tongue was better than any drug. "People like her... they sometimes just disappear when things get too overwhelming."

Naruto blinked, confused. "What do you mean 'people like her'?"

"Fragile people," Sasuke said, standing up. He was taller than Naruto, and he used that height to lean in, just enough to catch that citrus scent again. "Don't worry about her. You have your project to focus on. The teacher paired us up for the Mathematics assignment, remember?"

Naruto’s eyes widened. "Oh, right! Man, I'm gonna fail that for sure. I'm hopeless at math."

"I won't let you fail," Sasuke whispered, his voice dropping to a register that made the hair on Naruto’s neck stand up. "I'll take care of everything. I'll tutor you at my house. It’s quiet there. No one will disturb us."

Naruto rubbed his arm, looking slightly uncomfortable, the memory of the "creepy" encounter from the night before clearly lingering. "Uh, sure. Thanks, Sasuke. That’s... that’s really nice of you."

"It isn't nice," Sasuke thought as he watched Naruto walk back to his seat. "It’s inevitable."

As the weeks progressed, the "curse" of the Sakura Tree began to grow. Every student who planned to confess to Naruto found themselves meeting with "accidents" or simply vanishing. The school was draped in a blanket of paranoia, but Naruto remained the eye of the storm. He was the only thing that stayed bright, even as his friends began to look over their shoulders.

Sasuke watched it all. He watched Kakashi Hatake, their teacher, starting to ask questions. He watched Iruka, the counselor, hugging Naruto as the boy cried over the disappearance of his friends. He felt a twinge of jealousy at Iruka’s touch, but he suppressed it. Iruka was a father figure. He could wait.

The tutoring sessions at the Uchiha manor were the highlight of Sasuke’s existence. He would sit close to Naruto, explaining calculus, while his mind played out scenarios of violence and possession. Once, Naruto’s hand brushed his as they reached for a calculator. Sasuke didn't wash that hand for a week. He licked the spot where their skin had met, tasting the salt and the life of his idol.

"You’re really smart, Sasuke," Naruto said one evening, looking up from a notebook. "I wish I was more like you. Everything seems so easy for you."

Sasuke looked at him, his dark eyes swirling with a madness Naruto was too innocent to see.

"Nothing is easy, Naruto," Sasuke said softly. "I have to work very hard to keep things... exactly where I want them."

"Well, I'm glad we’re friends now," Naruto said, giving him that blinding, toothy grin. "I thought you hated me at first."

*Friends.* The word was an insult.

"We are more than that," Sasuke said, though Naruto didn't hear him over the sound of the rain against the window. "We are destiny."

That night, after Naruto went home, Sasuke didn't just masturbate. He began to prep the basement. He moved the furniture, stocked the pantry with Naruto’s favorite ramen, and installed the heavy, soundproof padding behind the walls.

The Spring Festival was approaching. The legend of the Sakura Tree was waiting. Sasuke knew that Gaara was planning something. He knew that the red-headed boy had bought a small charm to give to Naruto beneath the blossoms.

Sasuke sharpened his kendo blade in the moonlight, the steel reflecting the obsessive fire in his eyes.

"The sun doesn't belong to the sky," Sasuke whispered to the darkness. "It belongs to the one who can keep it from setting."

He looked at the calendar. The countdown had begun. One by one, the rivals would fall. One by one, the lights would go out. And in the end, there would be only two people left in the world.

Sasuke Uchiha. And his precious, golden Naruto.

The first month had been a trauma of distance. The coming months would be a masterpiece of proximity. Sasuke closed his eyes, imagining the smell of the cherry blossoms and the copper tang of blood. He could almost hear the fireworks. He could almost feel the weight of Naruto’s body against his own, finally still, finally safe, finally *his*.

"I love you, Naruto," he said to the empty room.

The shrine seemed to glow in response, a hundred paper eyes of Naruto Uzumaki staring back at their god, their captor, and their only remaining truth.
Contents

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