Friday evening. The light slowly faded from the sky. A quiet dusk settled over the grounds of Advanced Nurturing High School. The slightly tense atmosphere of the day gradually gave way to the relaxed feeling unique to after school.
Following his established plan, Yoshikage Kira headed to the convenience store between the student dormitories and the school buildings. A new pure-white handkerchief, replacement pen refills, toast and milk for next week's breakfasts—every item on his list was specified down to the brand and quantity. Nothing was spontaneous, and he had no unnecessary desires.
He never changed his plans. Change meant variables, and variables meant risk. Risk was the last thing he needed.
As he pushed open the door, the wind chime rang with a light, crisp note. The store was softly lit, with few customers and wide, quiet aisles. Only one student was waiting at the register, and the refrigerator's compressor hummed low. Everything followed a rhythm he knew well.
He went straight to the household goods section, calmly scanning the shelves as he moved with precision and efficiency. When choosing pen refills, he picked up two boxes and compared the specifications on the back, then returned one after confirming they matched. He didn't hesitate or make a single unnecessary movement.
This was how he maintained order. Every step, every movement, was under control.
Just as he picked up the second box of refills, he caught a figure darting past the snacks out of the corner of his eye.
A girl. Short black hair, light-footed but moving quickly, with a deliberately restrained air of aggression. Her uniform was worn carelessly, one button undone at the collar and sleeves rolled up to her forearms. She had a distinctly laid-back air about her. But her eyes were different. They moved, scanning—the register first, then a corner of the ceiling, then the blind spots between the shelves. Each glance was precise and swift, like a small radar dish.
Kira didn't pause. He continued comparing the pen refills, not even looking away from the box. But his attention had already drawn an invisible line to the girl.
He saw her stop beside the refrigerated case. She opened it and took out a drink. Her movements were natural—so natural that no passerby would have thought anything was wrong. But as she closed the door, she turned her body slightly to one side, and her left hand made the faintest movement inward. The hem of her uniform lifted just under three centimeters farther than it should have.
Less than a second. A can of beer disappeared from the refrigerator and slipped inside her uniform.
Quick and clean.
Kira put the pen refills he'd chosen into his basket. His expression didn't change. Neither did his breathing or the pressure of his fingers.
He mentally labeled the girl: sharp-eyed, precise, skilled at using blind spots, prepared in advance. Not her first time doing this.
An ordinary student would have taken at least a second look. Curiosity was human nature, especially when confronted with someone breaking the rules. The question "Isn't she afraid of getting caught?" would come naturally. But Kira had no such instinct. Or rather, he'd suppressed it a long time ago.
Don't watch. Don't interfere. Don't report. Don't get involved.
That was the line he drew to preserve his peaceful life. Other people's choices and consequences had nothing to do with him.
He picked up the toast and headed for the register.
What he didn't notice was that, in the farthest corner of the store, near the refrigerated drinks, another gaze had been fixed on him from beginning to end.
The girl was petite, with skin so pale it was almost translucent and long silver hair falling over her shoulders, its cool sheen catching the convenience store's white lights. She held a slender cane and stood upright, composed, breathing lightly and steadily. Though she needed a cane to stand, there was nothing weak about her presence.
Sakayanagi Arisu.
She had witnessed Masumi Kamuro steal the beer.
What truly caught her interest was the boy in the household goods section.
He'd seen it. Sakayanagi was certain of that. Kamuro's actions might have escaped the clerk and the other students, but the gap between the shelves in the household goods section gave a clear view of the refrigerator. From where Kamuro had been standing, the boy's position was the only place with an unobstructed view of the whole thing.
Yet he hadn't reacted.
It wasn't the reaction of someone pretending not to notice. People who pretended not to see would deliberately look away, adjust their posture unnaturally, or speed up or slow down their movements. Sakayanagi had seen those subtle tells countless times. Recognizing them was easier than breathing.
But this boy had shown none of them. His pace as he picked out his purchases hadn't changed. Neither had the speed of his gaze or even the curve of his lips. He truly didn't care. Or perhaps he did care, but his mind processed the sight of a theft in a way that was entirely unlike an ordinary person's.
Sakayanagi's lips slowly curved into a faint smile, so slight that no passerby would notice. But she knew what it meant: this was the expression she wore when she found something interesting.
At Advanced Nurturing High School, there were plenty of clever people, and even more talented ones. But someone who clearly saw everything yet chose to stay completely uninvolved, someone this calm, was exceedingly rare.
At the same time, Kamuro had already reached the register, paid for a bottle of mineral water, and was preparing to leave as if nothing had happened. She was confident in her work: she'd scouted the route beforehand, calculated the angles carefully, and even adjusted her pace to seem as natural as possible. There hadn't been a single flaw.
So when a slender figure blocked her path, her body tensed instinctively for a moment.
The girl before her looked completely out of place in the convenience store. Silver hair, a cane, skin pale as if she never went outside. She didn't have an imposing stance; her frail body made her seem a little delicate. But those eyes—
Kamuro lowered her head, and the instant she met them, a chill ran down her back.
They weren't the eyes of someone looking at a thief. She'd been prepared to be questioned, threatened, or even reported outright. But this girl's gaze was none of the reactions Kamuro had anticipated. There was no anger, no sense of justice, not even the desire to pass judgment from on high.
Only interest. The way someone might look at a tool that could come in handy.
"Did you just... hide something?"
Her voice was as light as the wind, but her words struck straight at Kamuro's weakest defense. Her fingers clenched around the shopping bag against her will.
"I don't know what you're talking about." Her voice still worked, but her throat was already going dry.
Sakayanagi smiled softly. She didn't press or interrogate her. She simply stated a fact.
"The surveillance cameras in this store have a pretty perfect view, you know."
The words drenched Kamuro's spine in ice. Her expression changed. Not because she'd been threatened—she'd already checked the camera angles and was confident there was a blind spot. What unsettled her was the way the other girl said it. She sounded too certain, as if she weren't making a guess but stating a conclusion she'd already verified. And in that moment, Kamuro realized she couldn't tell how much the girl actually knew.
"You're calm, and you're good at observing your surroundings and finding their weak spots." Sakayanagi's tone remained gentle, as if she were praising a well-solved math problem. "Rather than waste your time doing pointless things here, why not... do something more useful for me?"
There was no threat or command, yet she wielded a control that left no room for refusal.
The silence stretched for a few seconds. At last, Kamuro lowered her head. Her tone was awkward, but she no longer had the confidence to resist.
"...Got it. Do whatever you want with me."
Kira had seen all of it.
He'd already paid and was standing by the shelves near the store entrance, neatly folding his shopping bag and tucking it into his backpack. The confrontation at the register had lasted less than a minute, and in that time he'd watched the short-haired girl go from wary to defeated to compliant.
The silver-haired girl had made someone who could steal from a camera blind spot bow to her with just three sentences.
Kira zipped up his backpack and prepared to leave. He had no desire to take part in the encounter, or any unnecessary curiosity about it. Whether it was Class A or Class C, who controlled whom had nothing to do with him. He'd only come to buy toast and pen refills.
But just as he turned around, he felt it.
A gaze settled on him. It wasn't scrutiny or suspicion, but something subtler and harder to shake off. Like a collector spotting a piece they'd never seen before—not reaching for it right away, but remembering where it was and looking back.
Kira didn't turn around.
He pushed open the door and walked into the dusk. His pace was steady and measured, neither hurried nor slow, just as it had been on the way in. The wind chime rang once more behind him, light and crisp, like some kind of silent mark.
The evening breeze was cool against the quiet campus path. The streetlights hadn't come on yet, and dusk blurred the edges of the buildings into a hazy gray-blue. Kira carried his shopping bag as he walked back to the dorms, each step following his planned route.
His expression remained calm. But he knew perfectly well—the gaze in the convenience store hadn't been accidental or merely curious. It was the gaze of someone who'd spotted her prey.
From that moment on, his peaceful life had quietly fallen under someone's watch.
And he didn't even know the silver-haired girl's name.
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