I never thought my life would end because of poor polymer selection and inadequate UV stabilization, but here we are. Or rather, here I was-because right now, I'm crouched in a bush that shouldn't exist, in a world that definitely shouldn't exist, waiting to ambush a five-year-old prodigy who could probably kill me seventeen different ways before I finished explaining what polyethylene terephthalate is.

  But I'm getting ahead of myself. Let me back up to the exact moment my relationship with Claire, my understanding of material science, and my entire existence in my original world all came crashing down simultaneously-literally.

  It started with the hair dryer incident.

  I can still picture Claire's face when she walked into our shared apartment kitchen that Tuesday afternoon. I was hunched over the counter, her brand-new Dyson Supersonic-the one she'd saved up three months of her graphic design freelance gigs to buy-aimed directly at a 3D-printed PLA bracket I'd been working on for my senior project. The thing needed some post-processing heat treatment to relieve internal stresses, and I'd figured, logically, that a hair dryer producing controlled airflow at approximately 80-90 degrees Celsius would be perfect for the job.

  I was wrong. Not about thermodynamics-I was absolutely right about that. I was wrong about Claire's reaction.

  "Alex, is that. Is that my Dyson?"

  I looked up, still holding the dryer in one hand and rotating the part with a pair of needle-nose pliers in the other. "Oh, hey! Yeah, so I needed to heat-treat this bracket for my polymer processing class, and I figured-"

  "You figured you'd use my three-hundred-dollar professional grade hair dryer as laboratory equipment?"

  "Well, when you put it that way-"

  "How else would I put it, Alex? How else would I possibly put it?"

  I tried to explain the material science behind it. I really did. I walked her through the precise temperature control that her Dyson actually provided. I thought I was being reassuring. I thought showing her that I understood the tool well enough to use it safely for an alternative application would somehow make it better.

  It did not make it better.

  "Cooling-off period," she'd declared, unplugging her Dyson from the wall socket and cradling it like I'd been threatening it with a blowtorch instead of using it exactly within its designed thermal operational parameters. "We need a cooling-off period, Alex. That's the material science term, right? For when something is too heated and needs to return to a stable state?"

  I had to admit, her metaphor was technically accurate. "The term you're looking for is actually annealing, which is a specific type of heat treatment followed by controlled cooling to relieve internal stresses and-"

  "Out."

  “Yes ma’am.”

  So began our cooling-off period, which lasted exactly four hours before I'd groveled sufficiently and agreed to her peace-offering terms. One Crunchwrap Supreme from Taco Bell, plus whatever else she wanted from the menu, my treat.

  That's how we ended up in the Taco Bell parking lot on Saturday evening, sitting in my beat-up 2013 Honda Civic splitting a Baja Blast and trying to pretend that our relationship hadn't nearly ended over thermal polymer processing.

  "You have to admit," I said, unwrapping my Crunchwrap, "objectively speaking, the Dyson was the perfect tool for the job. focused airflow, ergonomic design-"

  "Alex, I swear to god-"

  "I'm just saying! From an engineering perspective-"

  "Your 'engineering perspective' almost murdered my hair dryer!" But she was smiling now, shaking her head in that exasperated way that meant I was forgiven.

  Mostly forgiven.

  Conditionally forgiven.

  I took a long sip of my Sprite, feeling the carbonation burn pleasantly down my throat. "Okay, but you have to admit it's kind of funny. Like, relationship problems in 2025 being caused by a Dyson hair dryer. That's peak modern relationship drama. It's like if couples in the 1950s fought about someone using their new Hoover vacuum to, I don't know, dry paint or something."

  Claire snorted, nearly choking on her quesadilla. "Oh my god, stop. I'm supposed to still be mad at you."

  "Are you though? Still mad?"

  She considered this, chewing thoughtfully. "I'm deciding. The Crunchwrap Supreme is helping your case. But you're on thin ice, Alex. Thin, thermally-treated ice."

  "Technically, ice doesn't really benefit from heat treatment because it's a crystalline solid that would just undergo a phase transition to liquid water once you exceed zero degrees Celsius at standard atmospheric pressure-"

  "Oh my god, do you ever stop?"

  "It's a medical condition. Science Syndrome. Very serious. The only known cures are a kiss on the lips and allowing me to finish my sentences about thermodynamic properties."

  She threw a wadded-up napkin at my face. I caught it, grinning, and threw it back. She dodged, and it bounced off the passenger window. We were both laughing now, the tension of the past four days finally evaporating.

  That's when Claire said something about how using her hairdryer was "the most Alex thing ever," and I countered with some joke about how at least I wasn't obsessed with true crime podcasts like she was, and she shot back that at least true crime didn't involve potentially destroying expensive electronics, and I was taking another long sip of my Sprite, already formulating my comeback about how her podcast obsession had once made her convinced our upstairs neighbor was a serial killer (he wasn't, he just worked night shifts and had insomnia), when.

  The wind picked up. Hard.

  I noticed it peripherally, the way you notice background details when you're focused on something else. The Civic rocked slightly. The bags in the parking lot fluttered. leaves whipped across buildings.

  And then I saw it.

  The Taco Bell sign.

  I'd never really looked at it before.Not really, not with the eye of someone who'd spent two years studying material properties and failure mechanisms. But as the wind howled and the structure tilted, I saw everything.

  The metal frame was corroded at the base, rust blooming across the joints like some kind of horrible metallurgical cancer. The bolts were practically orange with oxidation. The whole structure was swaying in a way that suggested the mounting brackets had lost significant structural integrity-probably from years of thermal cycling, moisture exposure, and complete lack of proper maintenance.

  And the sign face itself. Oh god, the sign face.

  Polycarbonate. It had to be. Large-format, probably thermoformed polycarbonate sheet, maybe 6-8mm thick, backed with LEDs for illumination. And from what I could see in the split second before my brain caught up with my eyes, it was UV-degraded. The surface had that characteristic yellowing, that loss of optical clarity that indicated serious photochemical degradation.

  "Alex?" Claire's voice seemed to come from very far away. "Alex, is that sign-"

  It happened in slow motion, the way they say car crashes do, except instead of thinking about my life flashing before my eyes, I was running failure analysis calculations in my head.

  The wind load on the corroded structure has exceeded the reduced yield strength of the oxidized steel mounting brackets. The moment arm created by the off-center mass of the sign face is generating a torque that the deteriorated connection points can no longer withstand.

  "Drive!" Claire screamed. "Alex, drive!"

  But I was still holding my Sprite. Still had my seatbelt off because we'd been parked and eating. Still processing the fact that a Taco Bell sign, an object that should have been designed with appropriate safety factors and regular inspection protocols, was about to violate every principle of responsible structural engineering I'd ever learned.

  The metal frame came down first.

  It hit the hood of my Civic with a sound like the universe clearing its throat.A massive, groaning CRUNCH that I felt in my bones. The windshield spiderwebbed but held. Claire screamed. I threw my arm across her instinctively, uselessly, because what was my arm going to do against several hundred pounds of metal and whatever polycarbonate's density was (I knew this, I definitely knew this, it was approximately 1.2 grams per cubic centimeter, why was I thinking about this now-)

  The metal frame wasn't the problem, though. We might have been okay. Bruised, shocked, definitely filing an insurance claim and probably a lawsuit, but okay.

  Then the bell came down.

  The massive, glowing, purple-and-yellow Taco Bell logo face. Thermoformed polycarbonate, backlit, probably weighing somewhere between 80 and 120 pounds depending on the thickness and internal support structure. UV-degraded. Embrittled. And falling directly toward my side of the car.

  I had time for exactly one thought, crystal clear and absurdly clinical.

  The impact resistance of polycarbonate decreases significantly with UV exposure due to photo-oxidative degradation. This particular sample has clearly exceeded its service life without appropriate UV stabilization. The Charpy impact strength has probably decreased to something catastrophically lower. Poor material selection for outdoor applications without proper additives. Shameful.

  Then the bell face hit met.

  I want to be clear about something. It wasn't the weight that killed me. Polycarbonate is light for its size. Even a large sign face, even one thick enough to support its own structure and house LED arrays, wasn't heavy enough to crush me outright.

  It was the impact.

  See, polycarbonate in its pristine state is tough. It's used for bulletproof glass, for Christ's sake. It's an amorphous thermoplastic with excellent impact resistance because of its molecular structure those carbonate groups that give it its name, the bisphenol-A units that provide flexibility, the way the polymer chains can absorb and dissipate energy.

  But UV degradation changes everything. The photons break down the carbonate linkages. The polymer chains scissor and cross-link randomly. The material becomes brittle. What should have flexed and distributed the impact instead shattered, and the edge-the sharp, degraded, brittle edge-caught me right across the throat and chest.

  I couldn't breathe. Claire was screaming my name, her voice high and terrified and distant. I tried to tell her about the polymer chains, about how this could have been prevented with proper UV stabilizers like benzotriazoles or hindered amine light stabilizers, about how someone at Taco Bell's corporate facility management had failed, had chosen the wrong material or skipped the additives or ignored the inspection schedule-

  But all that came out was a wet, horrible gurgling sound.

  My last coherent thought, as my vision tunneled and darkened, was this.

  I'm being killed by a defective Taco Bell sign. This is the most embarrassing death.

  And then there was nothing.

  And then there was everything.

  I woke up screaming about glass transition temperatures and polymer morphology, which was probably not the most age-appropriate thing for a three-year-old to be shouting, but I didn't know I was three yet. I didn't know I was in a different body, in a different world, until I opened my eyes and saw wooden walls instead of a hospital ceiling, smelled wood smoke and cooking rice instead of antiseptic, heard unfamiliar voices speaking Japanese-which I somehow understood perfectly, which should have been my first clue that something was very wrong.

  It took me three days to piece together what had happened.

  I was Sagita Hatake. I was three years old. I was an orphan, living in some kind of communal orphanage in Konoha.

  And I, Alex, material science major, killed by a Taco Bell sign, boyfriend to Claire who I would never see again, student of thermodynamics and polymer processing-was stuck in this absurd world as a toddler.

  I spent the first week in denial. Obviously this was a coma dream. Obviously I was in a hospital somewhere and my brain was constructing elaborate fantasies to keep itself occupied while my body healed. Obviously I would wake up any moment, and Claire would be there, and I'd tell her about the crazy dream I had about ninjas, and we'd laugh about it.

  Unauthorized usage: this narrative is on Amazon without the author's consent. Report any sightings.

  But I didn't wake up.

  The dreams got less vivid. My memories started to fade slightly. I remembered most of everything. lectures on polymer chemistry, lab session on mechanical testing, equation for calculating stress-strain curves, but most wasn't enough. I also remembered dying, the sensation of that UV-degraded polycarbonate edge cutting into my throat, the embarrassment that had been my final emotion.Although it felt less like i experienced them and more like i witnessed them.

  By the second week, I had to accept it. Somehow, impossibly, I had been reincarnated. Isekai'd, as the anime fans in my class would have called it. Sent to another world, into another body, with all my memories intact.

  And not just any world. I was in Naruto. The actual, literal world of Naruto, the manga and anime series I'd watched parts of in high school and uni but never really gotten into because I'd been too busy studying for my Physics exam.

  The implications were staggering. I was in a world where physics still mostly worked-gravity, thermodynamics, conservation of energy-but also a world where people could breathe fire and walk on water and create matter from basically nothing just by using handsigns and chakra.

  But I adapted. Kids are resilient, and apparently reincarnated college students in kids' bodies are even more so. I learned the language more fully. My three year old brain came with some basic Japanese knowledge, but I had to fill in a lot of gaps. I learned the social dynamics of the orphanage, which kids to avoid and which caretakers were soft touches for extra food. I snuck out and learned the layout of Konoha, this village that was somehow stuck in what looked like feudal Japan but also had electricity and running water and other modern amenities that made no architectural sense.

  And I haven't even gotten started about chakra.

  Everyone had it. Every human, every animal, every living thing. It was like... god, how do I even explain it? It was like discovering that matter and energy weren't just related by E=mc2, but that there was this third thing, this additional component to reality that could interact with both matter and energy but followed its own rules. Rules that seemed to laugh in the face of thermodynamics and conservation laws and everything I'd spent years learning.

  People here trained from childhood to access and manipulate their chakra. Kids entered the Academy at five/six years old to learn ninjutsu. The basic Academy techniques were Clone Jutsu (creating illusory copies of yourself), Transformation Jutsu (changing your appearance), and Substitution Jutsu (swapping places with an object at the moment of attack).

  All of which should have been completely impossible, but apparently weren't.

  I became obsessed. Not with becoming a ninja-honestly, the idea of stabbing people and doing missions and all that violent stuff held zero appeal to me beyond being able to protect myself. But understanding chakra and the world i now lived in?

  That consumed me.

  There was just one problem though. I couldn't sense my chakra. Nothing. I'd sit for hours, trying to feel this energy that was supposedly flowing through my body, and got absolutely nothing. Just the normal sensation of having a body, the usual awareness of breath and heartbeat and muscle tension.

  It was driving me insane.

  I asked the orphanage caretakers about it, but they just patted me on the head and said I was too young to worry about such things. I tried to find books about it in the village library, but most of the detailed chakra instruction manuals were restricted to Academy students and higher. I was stuck.

  That's when I remembered about Sakumo Hatake.

  the orphanage records said my parents had died when I was an infant and no other relatives had claimed me. But Sakumo Hatake was famous, even I'd heard about him in the few weeks I'd been paying attention. An exceptionally strong and competent Jonin and one of the village's elite ninja said to be on par with the 3 Sanin.

  Unfortunatel He was also, according to the orphanage caretakers, often on missions outside of the village. Which leads me to my plan for the past week. Get Kakashi to teach me. He is kind of a lonely kid (of his own choice). Although he is considerably younger than he was in the anime. He is still a talented kid, with access to the Hatake clan library, and he lived alone. And he was only five years old, which meant he was still probably learning the basics himself. And he lived alone, without adult supervision, in a place I could potentially access.

  Thus a plan formed slowly over several days of careful thought.

  I would find Kakashi, and I would pester him until he taught me how to sense chakra…

  It was a terrible plan with a high likelihood of failure but it was the only plan I had.

  So I started stalking a five-year-old, which sounds deeply concerning when I put it that way, but in my defense, I was also physically three years old, and it's not like I was being creepy about it. I just... observed. Learned his patterns. Figured out when he trained and where and for how long.

  The Hatake compound was on the edge of the village, a cluster of traditional houses and businesses with distinctive green-tiled roofs. Kakashi lived in one of the larger ones, and behind the property was a small forested area where I discovered after several days of careful surveillance from various hiding spots he trained every afternoon.

  Today was day five of my campaign. I'd been interrupting his training for four days straight now, asking questions, begging for help, generally making myself as annoying as humanly possible. The first day, he'd ignored me completely. The second day, he'd told me to go away in a flat, emotionless voice that would have been creepy coming from an adult but was just sad coming from a kid. The third day, he'd physically picked me up and moved me twenty feet away before returning to his training.

  Yesterday he'd actually looked at me. Made eye contact. Said, "You're persistent," in a tone that might have been the tiniest bit impressed but it was incredibly difficult to tell since he always had some form of fabric covering his mouth.

  Progress.

  Which brought me to today, crouched in a bush near the edge of the orphanage premises, watching out for the caretakers.

  The coast was clear-no adults around, no other kids, just me. An orphan on a quest for ultimate power.

  Time to execute phase five of Operation Pester the Prodigy.

  I jumped out of the bush.

  I hit the ground running, my short three year old legs pumping as I sprinted through the streets of the Hatake compound. No one paid attention to one small kid running past ,children ran everywhere in Konoha, it was just part of the background noise of village life.

  Kakashi's house came into view, distinguished by its green-tiled roof and the small garden out front that had clearly been neglected. I didn't bother going to the front door, I'd learned days ago that he never answered it. Instead, I ran straight around the side of the house, ducked under a gap in the fence that I'd discovered on day two, and emerged into the backyard.

  From here, I could see the forest edge. And I could hear it-the distinctive thwack of kunai hitting wood.

  Perfect. He was already training.

  I pushed through the underbrush, following the sound. My three-year-old body was surprisingly capable once I got used to its low center of gravity, decent energy, and flexible joints. The main limitations were reach and strength, but for running through a forest to bother a five-year-old, it just worked fine.

  I found him in a small clearing, one I'd mentally labeled "Kakashi's Training Spot #3" in my internal map of the area. He was facing away from me, silver hair-seriously, who had naturally silver hair at age five?-catching the late afternoon sunlight filtering through the trees. He'd set up several targets made from straw and wood, and he was working through what looked like a structured training routine.

  As I watched, he formed a series of hand seals. His hands moved with mechanical precision, much faster than I could track, and then he called out: "Bunshin no Jutsu!"

  Clone Jutsu. One of the basic three Academy techniques.

  Two identical copies of Kakashi appeared on either side of him in puffs of white smoke. Illusory clones, I'd learned-they had no substance, couldn't interact with physical objects, but they looked completely real. The three Kakashis held their formation for maybe five seconds before the copies dispersed.

  Immediately, Kakashi formed another seal. "Henge!"

  Transformation Jutsu.

  In another puff of smoke, the five-year-old disappeared, and in his place stood... an old woman, down to the worry lines on her face and the way she tied her apron.

  It held for three seconds. Then Kakashi released it and returned to his normal form.

  He was breathing slightly harder now, and I could see what might have been frustration in his posture. The techniques had worked, but something about them wasn't satisfying him. He was a perfectionist, I'd realized over my days of observation. Every movement had to be precise, every technique had to be executed flawlessly.

  This was both helpful for my plan and also made him incredibly intimidating for a five-year-old.

  He started to straighten himself when I made my move.

  "Kakashi!" I called out, stepping into the clearing with as much confidence as I could project through a body that was roughly three feet tall.

  He froze. Slowly, with visible reluctance, he turned to face me.

  His eyes were almost pitch black, flat and unreadable. His face was expressionless in a way that wasn't natural for a five year old, most kids this age wore their emotions openly. But Kakashi seemed to lock everything down under a perpetually bored expression.

  but that wasn't why I was here.

  "What do you want, Sagita?" His voice was flat, tired.

  "I want you to teach me how to sense chakra," I said, same as I had every day for the past four days.

  "No."

  "But-"

  "No." He turned back to his targets, dismissing me.

  I'd expected this. It was part of the pattern. Now came the negotiation phase.

  "Just five minutes," I said, walking closer but staying out of kunai range-I'd learned that lesson on day two. "Just show me how to feel it. That's all I'm asking."

  "You're three years old. You're too young."

  "You're five. You're not that much older."

  "I'm going to start at the academy soon. You're not ready."

  "I could be! If you just teach me how to-"

  "No."

  This was the tricky part. I needed to find the right lever, the right argument that would tip him from "absolutely not" to "fine, whatever, just leave me alone."

  I'd been thinking about this for four days. What would convince someone like Kakashi-who valued skill and efficiency to help a random three-year-old orphan who shared his family name?

  "I'll stop bothering you," I said. "If you teach me how to sense my chakra, really teach me, not just tell me to go away, I'll stop interrupting your training every day for the next five days."

  His shoulders tensed slightly. The first sign of actual emotion I'd seen from him all day.

  "You're interrupting me right now," he pointed out.

  "Yes. And I'll keep interrupting you every single day until you help me. Or..." I paused for dramatic effect, "you could spend ten minutes teaching me today, and you won't have to deal with me for the next five days."

  It was a gamble. I was betting that his desire for undisturbed training time would outweigh his resistance to helping me. And I was betting that his analytical mind would recognize that this was actually the most efficient solution to his Sagita problem.

  “No deal, at least a month.”

  “WHAT! A month is so long! Everybody else is so boring!” I paused for a bit in mock contemplation,”how about two weeks?”.

  Kakashi stood very still. I could see him thinking, running calculations I couldn't follow.

  Then he sighed.

  It was a long, exhausted sigh, the sigh of someone who'd been ground down by persistence and had finally decided that resistance was more effort than compliance.

  "Fine," he said, his voice somehow even flatter than before. "I will teach you. Then you leave and don't come back for two weeks."

  Victory surged through me, but I kept my expression neutral. "Deal."

  Kakashi walked to the center of the clearing and sat down cross-legged on the ground. After a moment's hesitation, I followed, sitting across from him. Up close, I could see the signs of fatigue in his face-dark circles under his eyes, the kind of weariness that came from not sleeping enough. This kid was pushing himself way too hard, but that wasn't my business. Getting access to chakra instruction was my business.

  "Chakra," Kakashi began, his tone shifting into what I recognized as teaching mode where he sounded more textbook than human, "is the combination of physical energy and spiritual energy. Physical energy comes from your body. Spiritual energy comes from your mind. Both of them combine to make chakra."

  I nodded.

  "To sense your chakra," he continued, "you need to dig deep within and clear your mind as much as possible."

  I closed my eyes.

  "Focus on your breathing. Feel your heartbeat. Feel the blood moving through your body."

  I followed his instructions. Breath in, breath out. Feel the rise and fall of my small chest. The thud of my heart, faster than an adult's heart but steady and strong. The sensation of air flowing through my nose and throat and down into my lungs.

  This part I could do. This was just normal proprioception, normal body awareness. Nothing mystical about it.

  "Good," Kakashi said, and I was surprised to hear something like approval in his voice. Though it was likely him being glad things were moving quickly. "Now the harder part. Spiritual part is... it's harder to explain. It's not physical. Just try empty your mind until you feel something around your belly."

  That was... incredibly vague and not helpful, actually.

  But I tried. I focused on the fact that I was thinking these thoughts, that there was an "I" experiencing this meditation exercise, that somewhere in this three-year-old brain was the accumulated knowledge and personality of Alex, material science major, killed by poor polymer engineering.

  And-

  Wait.

  There was something. Not physical, not quite mental either. Something that existed in the space between body and mind. A kind of... presence? Energy? It was like trying to see something in your peripheral vision-the more directly you looked at it, the more it vanished, but if you kept your attention soft and unfocused, you could sense it was there.

  "I think... I think I feel something?" My voice came out uncertain.

  "Try again, but focus."

  so I tried. I held onto that sense of physical awareness-breath, heartbeat, the aliveness of my body. And simultaneously, I tried to maintain that nebulous sense of consciousness, that spiritual presence.

  Nothing happened.

  I tried harder, straining mentally, trying to force the two sensations together through sheer willpower.

  Still nothing.

  "You're trying too hard," Kakashi said. His voice had lost some of its flatness and now just sounded tired. "It's not something you force. It's more like... allowing it to happen. it's already there, you just need to let your body and mind guide you."

  That was possibly the most zen-wisdom garbage I'd ever heard, and I'd taken a yoga class once with my girlfriend where the instructor spent twenty minutes talking about "letting your chakras breathe" which was ironic given my current situation.

  But I tried to relax. Stopped straining. Just... observed. Then something-

  A spark.

  It was tiny, barely perceptible, like static electricity or the ghost of a sensation that might have been imagined. But it was different. It was neither purely physical nor purely mental. It was something entirely new, something that hadn't existed in my original world.

  It was chakra.

  "I felt it!" I opened my eyes, excitement breaking through my usual attempt at emotional control. "Just for a second, but I felt it! It was-"

  "Good." Kakashi was already standing up, brushing dirt off his trousers. "You've sensed your chakra. We're done."

  "Wait, but-"

  "Our deal was that I teach you to sense chakra. You've sensed it. Now leave."

  He was right, technically. That had been our deal. But this was just the first step! I could barely maintain the sensation for a second, couldn't control it at all, had no idea how to actually use it for anything-

  Kakashi was looking at me with those flat gray eyes, and I could see the calculation there. He'd fulfilled his obligation. If I tried to renegotiate now, he'd probably shut down all future interaction.

  I needed to be strategic. Plant seeds for later.

  "Thank you," I said, standing up and bowing slightly. "That really helped. I'll leave you alone now, like I promised."

  He nodded once, already turning back to his training targets.

  I walked away, back through the forest toward the compound. But as I went, I was already planning. I'd sensed chakra, which meant it was possible. And if it was possible to sense it, it was possible to use it.

  I was three years old in a world of ninja magic, and I'd just taken my first step toward figuring out how it all worked.

  Behind me, I heard the sound of Kakashi resuming his training, the rhythmic thwack of kunai hitting targets.

  I smiled.

  Phase one complete. Now came the real work.