THE COLDEST DEMON GOD
An Unwanted Hero's Ascension
Volume 1 — Summoning & Rejection
Chapter 3 — The Pattern
6:11 a.m.
Breakfast was getting cold. Renjiro Kurogane knew that because he had prepared it eighteen minutes earlier, placed everything on the dining table, and then made the mistake of checking the monitoring logs before sitting down. Now three graphs occupied his monitors while rice, grilled salmon and miso soup waited behind him.
Renjiro remained in front of the desk. Sensor A had been positioned beside the computer, Sensor B near the window, and Sensor C close to the entrance. Different locations, different orientations, separate data streams and independent power sources. All three had recorded the same event.
He expanded the timestamps.
03:17:42.184 — SENSOR A: EM SPIKE
03:17:42.186 — SENSOR B: EM SPIKE
03:17:42.183 — SENSOR C: EM SPIKE
Maximum difference: three milliseconds.
Renjiro leaned back slightly. "Too close." One faulty sensor was ordinary. Two producing similar errors at nearly the same moment deserved attention. Three independent devices producing a synchronized spike within three milliseconds required an explanation.
It did not require a supernatural one. Not yet.
Renjiro opened the voltage logger. The electrical supply had remained stable throughout the event. Router logs showed no disconnection, his laptop had recorded no system failure, and temperature and humidity had remained within normal overnight variation. The raw sensor data showed no obvious corruption either.
A shared environmental source remained plausible: radio transmission, nearby electrical equipment, a passing vehicle with abnormal interference, equipment elsewhere in the apartment building, or something he had not accounted for. Public utility notices offered nothing relevant. Telecommunications maintenance offered nothing useful. Building outage reports showed none.
Renjiro closed the browser. "No conclusion."
That was not frustrating. It was simply accurate.
His phone vibrated on the desk. Several notifications waited from the Class 3-B group chat, but a private message beneath them caught his attention.
Shirakawa Reina — 05:58
Kurogane-kun. It happened again last night.
Another message followed.
I wrote down the time like you said. Around 3:18 a.m.
Renjiro looked at the graphs. 03:17:42. Same approximate minute.
His hand moved to the keyboard.
Renjiro: What happened?
The reply arrived quickly.
Reina: The light flickered twice.
Reina: My phone screen went black for a moment too.
Renjiro's attention sharpened slightly.
Renjiro: Charging?
Reina: No.
Renjiro: Were you using it?
Reina: Yes.
Renjiro: Did it restart?
The typing indicator remained for several seconds.
Reina: No. The screen went black for maybe one second. Then it came back.
Renjiro compared the report against his sensors. Different symptom. Similar time. Still not enough.
Renjiro: Anything else?
The next answer took longer.
Reina: My desk lamp made a strange buzzing sound.
Renjiro: Before or after?
Three dots appeared, disappeared, then returned.
Reina: Before, I think.
Renjiro stopped there. I think. Uncertain information was still information, provided it remained marked as uncertain.
Renjiro: Okay.
Reina answered almost immediately.
Reina: That's it?
Renjiro: For now.
Reina: You're not going to tell me what you think is happening?
Renjiro looked at the three sensor spikes again. He had possibilities. Possibilities were not answers.
Renjiro: I don't know yet.
A few seconds passed.
Reina: You really hate guessing, don't you?
Renjiro: Yes.
Another pause.
Reina: Good morning, Kurogane-kun.
Renjiro looked at the message for a moment.
Renjiro: Morning, Shirakawa-san.
He locked the phone and opened a new document inside the ANOMALY folder.
EXTERNAL REPORTS
Shirakawa Reina
Approx. 03:18
Light flicker ×2
Phone display interruption ~1 sec
Desk lamp buzzing before event — uncertain
Save.
The clock showed 6:19. Renjiro looked over his shoulder at breakfast. The anomaly could wait. Cold salmon was still edible. Cold rice was unnecessary.
✦ ✦ ✦
By 8:04 a.m., Class 3-B had returned to its normal condition.
Loud.
Mika stood beside Junpei's desk holding a mechanical pencil between two fingers. "I'm telling you, that's not mine." His surname was written clearly along the side: OKADA.
Mika looked at the pencil, then Junpei. "Your name is literally on it."
"Could be another Okada."
"In this class?"
"Statistically possible."
"You sit next to me."
"Circumstantial."
Mika threw the pencil at him. Junpei caught it against his chest.
"Violence."
"You stole my eraser yesterday too."
"I borrowed it."
"You didn't return it."
Junpei became very still, then slowly reached into his pocket. An eraser appeared. Mika's expression flattened.
Junpei placed it carefully on her desk. "Here."
"You had it the entire time."
"Apparently."
"You knew."
"I forgot."
"You're stupid."
Junpei looked offended. "That's unnecessarily direct."
From his seat near the window, Renjiro continued reading. Mika was correct.
A programming textbook lay open on his desk, though he had already read the material twice. Familiar text required little concentration, which left enough mental space to revisit the overnight data without appearing unusually distracted.
Three synchronized sensor readings. One external report within the same approximate minute. Possible correlation. Nothing more.
"Kurogane."
Renjiro raised his eyes. Junpei stood beside the desk holding a mathematics worksheet.
"No."
Junpei blinked. "I haven't asked anything."
"Number twelve."
Junpei slowly looked down at the worksheet. Question twelve had been circled three times.
"...That's unsettling."
"It's visible."
"You knew exactly what I was going to ask."
"You've been staring at that question since you came in."
Junpei looked at the paper again. "Fine. Number twelve."
"C."
Junpei smiled.
Renjiro added, "Your working is wrong."
The smile disappeared. "How can my answer be right if my working is wrong?"
"You guessed."
Junpei paused. "...Yes."
"Second line."
"What?"
"You moved the negative sign incorrectly. There." Renjiro tapped the page once.
Junpei erased the line and recalculated. Several seconds later, his eyebrows rose.
"C."
"Yes."
Junpei studied him. "Kurogane-kun."
"What?"
"Why aren't you top of the class?"
"I don't study enough."
Technically true. School examinations measured performance under a specific set of conditions. Renjiro had no reason to maximize that performance when doing so offered him nothing he wanted.
Junpei narrowed his eyes. "That sounds fake."
"It isn't."
"So you could score higher?"
"Yes."
"Why don't you?"
Renjiro looked at him. "Why would I?"
Junpei opened his mouth. There was no immediate answer.
Renjiro returned to his book.
After several seconds, Junpei spoke again. "I'm still eating lunch with you."
"No."
"You said no yesterday too."
"The answer hasn't changed."
"Friendship requires persistence."
"Harassment also requires persistence."
Junpei stared. Renjiro turned a page.
"I'm not harassing you."
"Then stop when someone says no."
That landed differently. Junpei's expression lost some of its theatrical exaggeration.
"...Fair."
Renjiro looked up. There was no anger in his face. He had simply said what he meant.
Junpei scratched the back of his head. "Okay. I won't force it."
"Good."
"But if I happen to find where you're eating—"
"That's different."
Junpei grinned. "Progress."
"No."
"Too late." He walked back toward his desk.
Renjiro watched him for a second before returning to the textbook. At least Junpei understood boundaries when they were stated clearly. That placed him above a surprising number of people.
The classroom door opened. Shizuka entered carrying several files.
"Everyone, sit down."
Conversation volume fell. Junpei dropped into his seat before she could say his name.
Shizuka noticed. "You're learning."
"Personal growth, Sensei."
"Let's not celebrate too early."
A few students laughed. Shizuka began attendance. Routine returned: names, responses, pages turning.
Then the fluorescent lights flickered.
Once.
Renjiro's eyes lifted immediately. The lights stabilized. Several students glanced upward, but the disturbance was small enough that conversation might have resumed if the projector had not activated by itself.
Click.
Its indicator light turned green.
Shizuka stopped. The internal fan began spinning.
Junpei raised his eyebrows. "Movie?"
"No."
The projector displayed its startup logo. Then the image disappeared.
Black.
Logo.
Black.
Logo.
Three cycles.
Then the machine shut down completely.
Silence settled across Class 3-B.
Junpei slowly raised one hand. Shizuka looked at him.
"Don't."
"I haven't said anything."
"You were going to say ghost."
Junpei lowered his hand. "...Maybe."
Several students laughed, releasing some of the tension. Shizuka walked toward the teacher's computer.
"Maintenance was already checking the electrical system yesterday. I'll report this too."
Renjiro checked the classroom clock.
8:11:26.
Memorized.
His attention returned to the projector. The lights had flickered. The projector had activated rather than simply losing power. Different behaviors. Potentially unrelated.
"Kurogane-kun."
Renjiro turned. Reina was looking at him from across the aisle. Her eyes moved once toward the projector, then back to him.
Renjiro gave the smallest nod.
She understood.
Shizuka restarted the teacher's computer. "Alright. Nothing is smoking, so we're continuing."
Junpei frowned. "That's our safety standard?"
"Would you prefer mathematics?"
"Electrical fire suddenly sounds manageable."
"Okada-kun."
"Continuing."
The class resumed. Renjiro did too. But 8:11:26 remained stored.
✦ ✦ ✦
After first period, Renjiro turned to the final page of his notebook.
08:11:26 — classroom lighting flicker
~08:11:31 — projector spontaneous boot / 3 display cycles / shutdown
No confirmed building-wide supply interruption
He closed the notebook.
"Kurogane-kun." Reina stood beside the desk again.
"What?"
"Eight eleven."
"I know."
"You checked."
"Yes."
Her attention dropped toward his notebook. Renjiro placed one hand over the final page.
"Private."
"Notes?"
"Yes."
"About the disturbances?"
"Yes."
"You really are investigating this."
"I'm recording it."
"That's investigating."
"Recording comes first."
Reina considered the distinction. "You thought I meant casually when you told me to write down the time."
"I didn't say casually."
"No. I assumed it."
"That's your mistake."
There was no cruelty in the answer. Only accuracy.
Reina's mouth curved slightly. "You're difficult."
"So stop asking questions."
"No."
Renjiro looked at her. She looked back. The answer had been immediate.
Interesting.
Before either continued, another shadow fell across the desk.
Junpei.
Renjiro glanced at him. "No."
Junpei stopped. "This time I genuinely haven't done anything."
"You're looking at my notebook."
"I can't see anything."
"Because my hand is covering it."
"Exactly. Suspicious."
"Or private."
Junpei paused. "...Also fair."
Renjiro removed his hand only after Junpei stepped back. Junpei noticed Reina, then looked between the two of them.
"Are you both involved in the electricity thing?"
Renjiro answered before Reina could. "No."
Reina raised an eyebrow.
Junpei pointed toward her. "She looked at you."
"People do that when someone is speaking."
"You know what I mean."
"No."
Junpei sighed. "Fine. Keep your secret."
"It isn't a secret."
"Then tell me."
"No."
Junpei stared at him. Renjiro reopened his textbook.
"Private and secret aren't the same thing."
Junpei stood there for several seconds, then nodded slowly. "...You know what? That's actually reasonable."
"Yes."
"Stop saying yes like that."
"No."
Junpei walked away muttering. Reina watched him go.
"He really is trying to become your friend."
"I noticed."
"Does it bother you?"
"Sometimes."
"Are you going to stop him?"
"If he becomes irritating enough."
Reina almost smiled. "That's surprisingly generous."
"No. Removing him would require more effort."
This time she did smile. Renjiro returned to his book. The conversation was over, at least from his side.
✦ ✦ ✦
Lunch began with Renjiro leaving Class 3-B before Junpei could approach him. Not because of Junpei. Because the upper stairwell was quieter. The distinction mattered. Mostly.
Renjiro sat in his usual place with his lunchbox open and his phone beside him. Before eating, he checked public outage notices, school announcements and weather data once more.
Nothing useful. Clear weather. No lightning activity. No relevant utility report. No evidence that explained the previous night's simultaneous sensor spikes.
He put the phone down.
Footsteps approached. Light. Familiar.
Reina appeared first, carrying her usual convenience-store lunch. "You came here again."
"Yes."
"So did I."
"I noticed."
She sat two steps below him without asking this time. Renjiro did not object.
Less than a minute later, heavier footsteps climbed quickly from below. Renjiro stopped chewing. Reina glanced toward the turn.
Junpei appeared. He saw them, stopped, then looked at Renjiro.
"I didn't follow you."
"Good."
"I saw you leave."
"That's different."
"I learned."
Junpei sounded absurdly proud of that fact. Renjiro continued eating.
Junpei looked at the stairs. "Can I sit?"
Renjiro glanced around. "Public staircase."
Junpei grinned. "That sounds like yes."
"It means I can't stop you."
"Close enough."
Junpei sat several steps away and opened a convenience-store sandwich.
Silence returned.
Thirty seconds passed. Junpei shifted. One minute. He looked at Reina, then Renjiro. Another thirty seconds.
"This is uncomfortable."
"Then talk less internally," Renjiro said.
Junpei stared. "How do I do that?"
"I don't know. I've never had your problem."
Reina lowered her juice carton to hide a smile.
Junpei pointed at both of them. "Do you actually sit here like this every day?"
Reina answered first. "It's quiet."
"That's the point," Renjiro added.
"You two are strange."
"Then leave."
"No."
"Then accept it."
Junpei took another bite of his sandwich. For almost two minutes, he managed.
Then his phone vibrated.
"Oh."
Reina glanced over. "What?"
Junpei turned the screen toward them. The Class 3-B group chat was filling quickly.
Did anyone else's phone just glitch?
Another message.
Mine froze for a second.
Then—
Same.
Renjiro's chopsticks stopped. He checked the time.
12:37.
Reina had already taken out her phone. Junpei frowned.
"Mine's normal."
Renjiro unlocked his. No visible problem.
More messages arrived. Someone's audio had cut out. Another student's screen had dimmed suddenly. A third complained that a video had frozen even though the sound continued.
Different devices. Different symptoms. Same minute.
Junpei scratched his cheek. "School Wi-Fi?"
"No."
He looked at Renjiro. "Fast answer."
"Screen brightness isn't controlled by the school Wi-Fi."
"Oh."
Reina was watching him. "Same phenomenon?"
"I don't know."
"But you're recording it."
Renjiro looked down. His notebook was already open beside the lunchbox.
He had written: 12:37 — multiple Class 3-B device disturbances
Automatically.
Junpei leaned forward. Renjiro closed the notebook.
"Don't."
"What are you writing?"
"Notes."
"You really are investigating this."
"Recording."
"That's what Shirakawa-san said."
Reina looked at Junpei. "You've been listening."
"You were standing next to his desk."
"That's not permission."
Junpei immediately leaned back. "Right. Sorry."
Renjiro noticed. Again. Loud. Annoying. But capable of correcting himself. Useful trait.
Junpei looked between them. "So both of you knew this was happening?"
"Kurogane-kun noticed it first," Reina said.
Renjiro looked at her.
She corrected herself. "At least before I did."
Better.
Junpei frowned. "What exactly is happening?"
"No idea."
"Nothing?"
"Nothing proven."
Junpei stared at him. "You've got a notebook, sensors, timestamps, and apparently Shirakawa-san sending you reports."
"Correct."
"And you still don't know?"
"Correct."
"That's terrifying."
"No. It's incomplete."
Junpei slowly shook his head. "Sometimes I think your brain is built wrong."
"Based on what?"
Junpei considered answering, then decided not to. "Never mind."
Good decision.
The remainder of lunch passed quietly. Mostly.
✦ ✦ ✦
After school, Renjiro stayed behind. Not for Reina. Not for Junpei. Not for Shizuka. He wanted the classroom empty.
Students left gradually. Mika dragged Junpei away after he lost some kind of bet that Renjiro had no interest in understanding. Daiki left with Riku. Nanami stopped to speak briefly with Shizuka near the door.
Eventually the room became quiet enough.
Renjiro opened his laptop. A diagnostic window appeared: network behavior, latency, and publicly accessible connection data. Nothing that would involve entering systems he had no permission to access. He had no need to break school rules merely because he was curious.
Reina remained at her desk. Her literature club apparently started later than most other activities.
Renjiro ignored her until she approached.
"What are you checking?"
"Network."
"The school's?"
"Publicly visible information."
Reina paused. "Very specific wording."
"Yes."
"Meaning there are things you could check that aren't publicly visible."
Renjiro's fingers stopped over the keyboard. He looked at her.
Reina met his eyes without smiling.
Sharp.
He had noticed that before. She lacked his technical knowledge, but she listened carefully enough that careless wording around her was a mistake.
"I didn't say that."
"You didn't need to."
Renjiro returned to the laptop. No benefit in continuing.
"Why are you still here?"
"Literature club starts late."
"I know that part."
"You asked."
"Fair."
Reina pulled the chair from the neighboring desk and sat. A book opened in her hands. She stopped asking questions.
Renjiro glanced at her once, then returned to the laptop. Fine. She was not interfering.
Several minutes passed. Renjiro compared the available data against his existing timestamps. There was nothing independently abnormal enough to explain the pattern.
That was the problem.
Flickering lights could be electrical. Projector resets could be faulty hardware. Frozen screens could be software. Network interruptions could be ordinary instability. Electromagnetic spikes could be environmental interference.
Each event, isolated from everything around it, was mundane enough to ignore.
Together—less so.
Renjiro opened a spreadsheet.
Reina glanced over. "That's a lot."
"Not really."
"How many incidents?"
"Depends on what qualifies."
"How many qualify?"
"Seven worth keeping."
Her page stopped turning. "Seven?"
"Some may be unrelated."
"Do you think they are?"
"I don't know."
Reina regarded him for a moment. "You really hate saying anything before you can prove it."
"Yes."
"Even when it's just an opinion?"
"Opinions affect what you look for."
She understood immediately. "Confirmation bias."
"Yes."
"I'm not stupid, Kurogane-kun."
"I didn't say you were."
"I know."
Silence returned.
Then the classroom clock stopped.
Renjiro noticed the absence of movement before anything else. The second hand had frozen at 4:16:33.
His attention shifted to the laptop. Wi-Fi disconnected. Reina's phone vibrated once and then displayed no signal. The fluorescent lights remained perfectly stable.
Renjiro's hands moved. Terminal. Gateway unavailable. External ping—nothing.
Five seconds. Six. Seven.
Tick.
The clock moved again. Wi-Fi reconnected.
Reina checked her phone. "My signal disappeared."
"Wi-Fi?"
"Everything."
Renjiro turned fully toward her. "Cellular too?"
"Yes."
"How long?"
"A few seconds."
He checked his own device. A reconnection event had been logged.
Renjiro stood.
Reina looked up. "Where are you going?"
"Checking scope."
He left the classroom. After two seconds, footsteps followed. Reina had decided to come. Renjiro did not ask her to stop.
The digital clock near the stairwell was functioning normally. Another classroom still had internet access. A vending machine's display showed no restart sequence. Students moved through the corridor without reacting to anything unusual.
Renjiro continued toward the opposite end of the floor.
"What are you checking?" Reina asked.
"Whether the interruption affected anything outside our room."
"The clocks?"
"Network. Cellular. Anything obvious."
They reached the end of the corridor. Nothing. No alarms. No teachers appearing from classrooms. No students complaining about lost connections.
Renjiro turned back. Reina followed.
"You think it only happened in Class 3-B?"
"I don't know."
"Of course."
Renjiro glanced at her. "That sounded sarcastic."
"It was."
"Why?"
"Because that's always your answer."
"When I don't know."
"Exactly."
"Then it's the correct answer."
Reina was quiet for two steps. "You're impossible."
"No. You just don't like incomplete answers."
She looked at him. "Neither do you."
"Correct."
They returned to Class 3-B.
Shizuka stood at the doorway. Her gaze moved from Renjiro to Reina, then toward the empty classroom.
"Kurogane-kun. Shirakawa-san."
"Yes, Sensei?" Reina answered.
"Why are you two still here?"
"Club," Reina said.
Shizuka looked at Renjiro.
He raised the laptop slightly. "Personal work."
"What kind of work?"
"Data."
Shizuka narrowed her eyes. "You're not taking apart school equipment, are you?"
"No."
Reina looked away.
Renjiro noticed. So did Shizuka.
"Kurogane-kun."
"I haven't touched any school equipment."
"Why did Shirakawa-san just look away?"
Reina answered calmly. "Because the question was funny."
Shizuka stared at both of them. Renjiro remained silent. That usually helped. Not this time.
Shizuka sighed. "Fine. Just don't stay too late."
"Yes, Sensei."
She turned away, then stopped. "Actually."
Renjiro's attention returned to her.
"Did either of you notice the clocks acting strangely?"
His focus sharpened. "Which clocks?"
"The staff room."
"When?"
"A few minutes ago."
Reina looked at Renjiro. Shizuka saw it again.
"What?"
Renjiro closed the laptop halfway. "What happened?"
"The wall clock stopped."
"For how long?"
"A few seconds."
"Anything else?"
Shizuka raised an eyebrow. "Kurogane-kun."
"What?"
"You're interrogating me."
"No. I'm asking relevant questions."
"That is what an interrogation contains."
Renjiro considered it. "Fair."
Shizuka's expression softened by a fraction. "The computer lost connection too."
Renjiro said nothing. Classroom. Staff room. Not isolated to one room.
Shizuka looked between him and Reina. "Alright. What are you two doing?"
"Collecting data," Reina answered.
Renjiro turned toward her. She looked back.
"It's true."
Shizuka focused on him. "Kurogane-kun?"
"Yes."
"You're investigating the school's electrical problems?"
"Not exactly."
"Then what exactly?"
"I don't know yet."
Her eyes narrowed. "That answer is becoming suspicious."
"It's still true."
"If you think there's a genuine electrical problem, tell the school."
"I will if I find one."
"You are a student."
"Yes."
"Not an electrician."
"Also true."
Shizuka waited. Renjiro waited.
"You are going to keep doing this anyway."
"Probably."
At least that answer was honest.
Shizuka closed her eyes briefly. "Go home before I invent extra assignments."
"Alright."
Reina stood. "Yes, Sensei."
Renjiro packed the laptop. One conclusion had become useful: the 4:16 interruption had not been limited to their classroom.
✦ ✦ ✦
Reina sat beside the train window with a closed book on her lap. She had opened it at the station. Three pages later, she had stopped reading.
Her thoughts kept returning to Class 3-B.
Not the frozen clock. Not even the loss of cellular signal.
Kurogane.
Everyone else reacted first and understood later. He seemed to do the opposite. The instant the clock stopped, his hands had moved: network check, phone, hallway, other rooms, vending machine, digital clocks.
He had not looked frightened.
That was not particularly comforting. Fear, at least, would have made him normal.
Instead, Renjiro treated something increasingly abnormal like a malfunctioning machine that had failed to provide enough documentation.
Reina looked at her phone. Their message history remained short. Mostly questions, times and symptoms. No unnecessary conversation.
She scrolled to his reply from the previous night.
Don't know yet.
For someone who appeared capable of analyzing almost everything around him, Kurogane Renjiro seemed unusually comfortable admitting when he did not know something.
Most people used intelligence to sound certain.
He used it to reject certainty.
Reina locked the phone. Outside, Tokyo moved past the window in streaks of late-afternoon light.
She still did not know what was happening. But for some reason, knowing that Kurogane was recording it made the situation feel slightly less irrational.
Reina frowned at the thought.
That was probably a bad sign.
Her phone vibrated. A normal message from Mika. Nothing strange.
Reina finally reopened her book. This time she managed four pages.
✦ ✦ ✦
7:42 p.m.
Sensor A lay open on the floor of Renjiro's apartment. A screwdriver turned between his fingers while he checked every connection point manually.
Nothing loose. Nothing scorched. No damaged solder.
Sensor B was the same. Then Sensor C.
All three passed recalibration.
Renjiro was not satisfied.
If the problem affected timekeeping or connectivity, electromagnetic measurements alone were no longer enough. He added a fourth device: an independent digital clock module powered by its own battery and connected to a local logger. Beside it went a cheap radio receiver. Different measurement. Different hardware. Different failure mode.
He synchronized every timestamp, then deliberately offset one control clock by exactly thirty seconds. If an anomaly somehow forced every device to produce identical time values despite that offset, the logging architecture itself would become suspect.
Five independent systems.
Ready.
"Good."
His phone vibrated. Junpei.
Renjiro considered ignoring it, then opened the message.
Junpei: Kurogane-kun.
Another appeared.
Junpei: IMPORTANT QUESTION.
Renjiro waited.
Junpei: If my PC randomly glitches, is that part of your weird electricity thing?
Renjiro's expression changed by a fraction.
Renjiro: When?
Junpei: Just now.
The clock showed 19:44.
Renjiro: What exactly happened?
Junpei: Screen went black.
Renjiro: PC shut down?
Junpei: No.
Renjiro: Monitor came back?
Junpei: Yeah.
Renjiro: Lights?
A pause.
Junpei: Wait.
Another message.
Junpei: Room light flickered too.
Renjiro sat straighter.
Renjiro: Exact time?
Junpei: Around 7:44.
Not precise. Still useful.
Renjiro: If it happens again, check the exact time.
Junpei: YES SIR DETECTIVE KUROGANE
Renjiro closed the chat.
Three seconds later, another notification arrived.
Reina.
Reina: 7:44.
Then—
Reina: Flicker.
Renjiro looked at the monitoring windows. All normal. Nothing had occurred in his apartment.
Reina. Junpei. Different neighborhoods. Similar minute. No corresponding event at Renjiro's location.
Interesting.
He opened a city map and marked approximate points: his apartment, Reina's general area, Junpei's, the school. Not enough precision for meaningful geometry.
Renjiro zoomed in. Nothing. Zoomed out. Still nothing.
"Hmm."
The class group chat produced another vague complaint about a television losing signal. Another student joked about ghosts. Renjiro ignored both. Too much unfiltered information could become worse than too little.
He needed criteria.
A new document opened.
EVENT CLASSIFICATION
A — Instrument-confirmed event
B — Multiple independent reports within narrow time window
C — Single detailed report
D — Vague / unverifiable report
Renjiro began sorting.
The overnight three-sensor spike—A.
The 8:11 projector and lighting event—B.
The 12:37 device reports—B.
The 16:16 clock/network interruption confirmed by the staff room—B.
The 19:44 Reina-Junpei reports—B.
Five meaningful event clusters. Two days.
Renjiro read the classification again. The pattern was becoming harder to dismiss. That did not make it easier to explain.
His phone remained beside the keyboard. No new message.
Good.
Renjiro closed the map. The next event would either improve the model—or break it. Both would be useful.
✦ ✦ ✦
12:16 a.m.
Renjiro's eyes opened.
No alarm. No vibration. No sound from the monitoring system.
For one second, the apartment was completely still.
Then his phone screen illuminated on the bedside table.
No notification. No incoming call. Just light.
The display went black.
The bedroom light flickered.
Once.
Twice.
Renjiro was already moving. His feet touched the floor before the second flicker ended, and he crossed the apartment as the monitoring screens came fully awake.
Sensor A—spike.
Sensor B—spike.
Sensor C—spike.
The radio receiver erupted into harsh static.
KRRRRRSHHH—
Renjiro's attention snapped toward the independent clock module.
The seconds had stopped.
Not the display.
The count itself.
Frozen.
The anomaly continued.
One second. Two. Three.
Renjiro watched.
Four. Five. Six. Seven. Eight.
Everything returned at once.
The static vanished. Electromagnetic readings dropped to baseline. The clock resumed.
Renjiro sat. No hurry now. The event was over.
He opened the logs. No corrupted files. No power failure. No system restart. The deliberately offset control clock remained exactly thirty seconds offset.
Good.
Logging architecture intact.
The independent clock module, however, was wrong.
Eight seconds behind.
Renjiro checked the second standalone clock.
Same discrepancy.
His laptop time had already corrected itself through network synchronization. His phone had done the same. The local independent clocks had not.
They had simply resumed from where they stopped.
Renjiro became completely still.
This was new.
Not a frozen graphical display. Not delayed rendering. Not a network clock error. Two independent clock modules had failed to count eight seconds while remaining powered.
He opened ANOMALY and created a new directory.
EVENT_06_001633
Logs copied. Sensor data. Clock data. Radio recording. Power measurements. Network history. Everything preserved.
His phone vibrated.
Reina — 00:17
Kurogane-kun.
Another message.
That one was stronger.
Before Renjiro answered, the Class 3-B group chat exploded.
Junpei: OKAY WHO ELSE JUST HAD THEIR LIGHTS GO CRAZY
Mika: Mine did.
Daichi: Same here.
Nanami: My clock stopped.
Renjiro's eyes stopped on the final message. His fingers moved.
Renjiro: Sakurai-san. What do you mean?
Nanami answered.
Nanami: The second hand stopped moving.
Renjiro: How long?
Nanami: Maybe five to ten seconds.
Renjiro looked at the independent clock.
Eight seconds.
Renjiro: Did it restart afterward?
Nanami: Yes.
Renjiro: Did the time jump forward?
The response took longer.
Nanami: No.
Renjiro's fingers became still.
Same behavior.
Her clock had not corrected the missing interval.
Neither had his.
He opened his physical notebook. The pen touched paper.
The phenomenon is real. Cause unknown.
Renjiro read the sentence once, then added another beneath it.
Do not assume mechanism.
Pen down.
That distinction mattered. He now had enough evidence to conclude that an actual external phenomenon existed. He did not have enough evidence to decide what it was.
Those were not the same thing.
His phone vibrated. Reina.
Reina: Are you awake?
Renjiro: Yes.
Reina: Did it happen there too?
Renjiro: Yes.
Several seconds passed.
Reina: So I'm not imagining it.
Renjiro looked at the sentence. Whatever was happening, Reina had experienced enough of it that self-doubt had apparently become part of the problem.
He typed one word.
Renjiro: No.
Another pause.
Reina: What do we do?
Renjiro stared at the message.
We.
He did not correct her. He also did not adopt the word.
The immediate problem remained practical. It was after midnight. They had school. The monitoring system was active. No one had been injured.
Renjiro: Sleep.
The reply came almost instantly.
Reina: Seriously?
Renjiro: We have school.
Reina: Kurogane-kun.
Renjiro: The sensors are recording.
Three dots remained on screen for several seconds.
Reina: You're impossible.
Renjiro considered that. Not relevant.
Renjiro: Good night, Shirakawa-san.
A pause.
Reina: Good night.
He placed the phone facedown.
The graphs remained open. Multiple locations. Independent devices. Independent witnesses. Synchronized disturbances. Eight missing seconds.
No mechanism. No source. No explanation.
Renjiro read the event summary one final time. Until tonight, the central question had been whether several unrelated faults were being mistaken for one phenomenon. That question was finished. Something had happened repeatedly, across different locations. The useful question had changed.
Renjiro closed the laptop halfway, leaving the monitoring process active. His reflection appeared faintly across the darkened display—black hair untidy from sleep, expression calm, eyes sharper than they had been three nights earlier. There was no fear. Fear required a threat, and he did not know whether this was one. Not yet.
Renjiro stood and returned to bed. Inside the ANOMALY folder, six event directories remained open to further comparison. There was no answer yet, but there was finally a pattern.
End of Chapter 3