The mid-June sun was starting to bake the corridors of Kamakura High, but inside Izumi Aoi's mind, a completely different storm was brewing.
He sat at his desk during the final minutes of third period, staring blankly at a notebook filled with complex audio-frequency charts, behavioral notes, and structural analysis. To any outsider, it looked like high-level university physics. In reality, it was Izumi's desperate, mathematically precise attempt to find "Moon."
'It doesn't make sense,' Izumi thought, letting out a heavy, silent sigh as he closed the notebook with a soft thud. 'I've cross-referenced their vocal ranges. I've subtly observed their speech patterns during lunch. I've even analyzed the way they breathe between sentences. Shinobu has the warmth, Sakura has the structural versatility, Amane has the emotional depth, and Iko... well, Iko has the exact rhythmic cadence when she actually speaks. But every time I think I've found a solid clue, the trail goes completely cold. It's a total statistical deadlock.'
The chime for the midday recess rang, shattering the quiet. The classroom instantly erupted into a chaotic swarm of students scrambling for lunch boxes and convenience store runs.
Izumi stood up, slinging his customized blazer over his right shoulder. He needed to get to the Audio Club room early to review the soundboard settings for next week's podcast trial. But as he approached the heavy oak door at the end of the west wing corridor, he froze.
The door was slightly ajar, and a voice was filtering through the small gap.
It wasn't the synthesized text-to-speech voice he was used to hearing from the club's resident introvert. It was a real, biological voice—high-pitched, incredibly expressive, hyper-energetic, and dripping with an undeniable, sparkling charisma.
Izumi narrowed his eyes, stepping forward silently on his tiptoes. He pressed his face against the gap, peering inside.
What he saw completely shattered his cognitive processing unit.
There was Iko Inoue, sitting in the main broadcast chair with a professional gaming headset clamped over her cat-eared hoodie. Her dual-monitor setup was glowing fiercely with a high-intensity, dark-fantasy action RPG. Her fingers were flying across a mechanical keyboard like a professional e-sports player, the clicks sounding like a miniature machine gun.
"Ah! No, no, no! Don't look at me, you giant ugly rock monster!" Iko shrieked into her high-end condenser microphone, her voice carrying a flawless, energetic gamer-slang rhythm. "Chat, look at this hitbox! That is literally scuffed! Why is his aggro radius the size of Tokyo?! Someone clip that, meow!"
Izumi's jaw dropped. 'Is this... the same girl who literally tries to fuse with the drywall whenever a human looks at her?'
"He's casting the ultimate! Dodge roll, frame-perfect frame-perfect... Let's go!" Iko cheered, bouncing in her seat with absolute, unadulterated hype. She glanced at her second monitor, reading a blazing-fast live chat stream. "Thank you for the super chat, Koko_Nut99! Yes, your virtual space idol Sumeri Ikon is absolutely cracked at this game! Watch me cheese this phase-two boss with pure, unmitigated galaxy-brain strats!"
Izumi checked the broadcast dashboard glowing on the side rack. The stream analytics were clearly visible: Current Viewers: 2,750. Total Subscribers: 10,000.
To an elite agency, those might be modest numbers, but for a solo, underground high school V-Tuber streaming from a dead club room? It was an absolute goldmine. She had a tight, fiercely loyal community. Her delivery was witty, fast-paced, modern, and brilliantly absurd.
"And that... is how a pro gamer takes out the trash!" Iko yelled triumphantly as the boss enemy disintegrated into digital dust on her screen. "Alright, my lovely stars, that's it for today's midday guerrilla stream! Don't forget to smash that like button, subscribe, and feed your local stray cats. Sumeri Ikon, signing off! Chu!"
With a final, practiced click, Iko terminated the stream feed. The bright 'LIVE' indicator on her audio interface snapped off.
"Phew..." Iko let out a long, deeply satisfied breath, stretching her arms above her head. A genuine, bright smile illuminated her face. "A peak viewership of two thousand seven hundred and fifty today... Chat was so cozy, meow..."
"An absolutely magnificent performance, Inoue-san! Truly, a pro-gamer move of global proportions!"
"Kyaaaa—?!"
Iko let out a high-pitched, terminal shriek, her entire body leaping six inches out of the gaming chair. Her headset flew off, clattering onto the mixing desk as she violently spun around, her eyes wide with absolute, apocalyptic horror.
Standing by the door, clapping his hands with theatrical slow-motion grandeur, was Izumi.
Realizing she had just been caught completely red-handed in her ultimate safe space, Iko's brain completely melted. In less than a millisecond, she pulled the strings of her oversized cat-hoodie so tight that the opening completely collapsed, hiding her entire face in a ball of thick, black fleece. She dropped to the floor, rolling herself behind the heavy computer tower like a startled armadillo.
"NPC! A stray NPC has breached the perimeter!" Iko's muffled voice screamed from inside the hoodie-cocoon. "Delete yourself! Clear my browser history! This is a non-canon event, meow!"
Izumi couldn't help but let out a genuine, low chuckle. The contrast was just too beautiful. He walked over, stepping around the sea of cables, and leaned against the desk right next to her hiding spot. "Come now, Inoue-san, don't be so cruel. A king does not delete himself from his own domain. Besides, your streaming persona is mathematically brilliant. Your comedic timing is top-tier."
"Stay back, you high-tier normie!" Iko hissed, a small pair of eyes peeking out from the tiny gap in her tightened hoodie. "You saw everything... you saw the forbidden sacred texts of Sumeri Ikon... My social life is officially at zero HP. It's game over."
"Why would it be game over?" Izumi asked, his voice losing its dramatic volume, becoming soft, grounded, and intensely sincere. He crouched down to her level, resting his elbows on his knees. "I think it's incredible. You are terrified of normal interactions, yet behind that avatar, you bring joy to thousands of people. That requires immense effort and dedication. I don't look down on that—I respect it."
Iko went completely still inside her hoodie. She blinked, staring at Izumi through the small gap. She expected him to laugh, to call her a cringe internet nerd, or to use it as blackmail. But his eyes were completely clear, filled with a profound, unyielding respect for her hard work.
Slowly, hesitantly, she loosened the hoodie strings, letting the fleece fall back to reveal her messy hair and flushed red cheeks. She hugged her knees tightly. "I... I only have courage when I'm behind the screen," she whispered, her real voice returning, soft and vulnerable. "In the real world, people are loud, and they judge you if you're different. Games and streaming... they don't care what I look like. They just listen to my voice. My viewers are my only real companions."
Izumi tilted his head, a slight frown hitting his face. "Companions? What about Shinobu, Sakura, and Amane? Aren't they your friends?"
Iko sniffled, crossing her arms defensively. "They... they are different. They are the high-tier Main Characters of the school. I am just a glitchy background asset. An underground NPC. They only let me stay in this club because they're nice. I'm just a side character in their story."
"A side character?"
Izumi suddenly stood up, snapping his posture back into full, theatrical grandeur. He swept his arm across the room, pointing dramatically at her dual monitors. "Absurd! Ridiculous! A completely flawed calculation, Inoue-san! In the grand theater of life, there is no such thing as a side character! You are the absolute director of your own digital empire! Personally, I find your true, chaotic nature infinitely more fascinating than any fake persona. Be proud of the chaos, meow!"
Iko froze. Her eyes went completely wide.
The way he delivered that final phrase—the specific, slightly mock-arrogant tilt of his head combined with a completely deadpan, absurd "meow" to match her cadence—triggered a massive, violent spark in Izumi's memory.
Three years ago, on a rainy Tuesday night, Izumi had typed a depressing message in the Miracle Radio live chat about feeling like a useless extra in his family. Moon had laughed through the static and said: "An extra? Absurd, Izumi! You are the absolute director of your own life! Be proud of your chaos, meow!"
'Wait...' Izumi's heart violently slammed against his ribs. His breath hitched. 'That phrase... the exact tone... Was it her?! Is Iko actually Moon?!'
Before Izumi could open his mouth to press for a clue, the heavy oak door flew open with a cheerful click.
"Good afternoon~! Oh my, what a lively atmosphere!"
Amane Shiina walked into the studio, radiating a pure, blindingly elegant aura that instantly earned her the title of the school's "Angel." She carried a neatly packed bento box and a stack of music sheets. But as her eyes scanned the room, she paused, noticing Izumi crouching near the floor and Iko huddled in a ball, both looking incredibly flushed.
Amane's perfect, gentle smile remained locked on her face, but her eyes narrowed into a terrifyingly sharp, playful gaze. A heavy, chillingly soft aura began to emanate from her shoulders.
"My, my..." Amane purred, her voice dripping with sweet, maternal malice as she walked over. "Izumi-kun and Iko-chan, all alone in the dark studio during lunchtime? And you're both so red... Izumi-kun, you aren't bullying our precious club member, are you?"
"A-Amane-san! It's a misunderstanding of astronomical proportions!" Izumi stammered, his internal radar instantly sensing extreme physical danger. "I was merely witnessing a digital miracle! Inoue-san here is actually a legendary—"
"NPC, SHUT DOWN!" Iko screamed in pure, unadulterated panic, lunging forward to throw her hands over Izumi's mouth. "Don't leak the patch notes! Stop the stream! Yamerooo, meow!"
But it was already too late. Amane's gaze shifted to the dual monitors, which still displayed the streaming software dashboard and the "Stream Successfully Ended" notification with Sumeri Ikon's avatar prominently displayed.
Amane's eyes sparkled with an intense, overwhelming warmth. The terrifying aura vanished instantly, replaced by absolute, pure adoration.
"Oh, sweetie... you finally got caught?" Amane cooed, completely ignoring Izumi as she dropped her bento box onto the couch and lunged toward Iko like a predator cornering a fluffy kitten.
"No! Stay back, high-tier boss monster! Don't touch the asset!" Iko shrieked, trying to crawl away under the desk.
But Amane was too fast. She scooped Iko up into a massive, suffocatingly tight hug, burying her face into Iko's cat-eared hoodie, rubbing her cheek against hers as if she were a literal pet. "Ahhh~! Iko-chan is just too cute! I've known about your streams for months, you know! I listen to them while I practice my piano! You're such a hardworking, adorable little sister!"
"H-Help... the Angel is draining my HP..." Iko groaned, her limbs flailing helplessly in Amane's iron grip of pure affection. "Requesting immediate backup... target is too strong..."
Click.
The door opened once more, and Shinobu Yuki and Sakura Tachibana walked in, carrying lunch bags from the cafeteria. They stopped dead in their tracks, taking in the absolute chaos unfolding on the floor.
Iko was being aggressively pampered by a smiling Amane, Izumi was sitting on a swivel chair trying to process the absolute sensory overload, and the gaming monitors were glowing in the background.
Sakura crossed her arms, her sharp eyes darting between Izumi and the girls before she let out a massive, exhausted groan. "Seriously... I leave the room for ten minutes, and the new guy has already turned the studio into a chaotic pet sanctuary. Aoi, what did you do this time?"
Shinobu, the president, merely let out a soft, beautiful giggle, placing a hand over her mouth as she watched Amane treat Iko like a small kitten. "Ahaha! Well, it looks like everyone is getting along really well today! I'll just pretend I didn't see anything and start setting up the lunch table."
Izumi leaned back in his chair, a wry, slightly breathless smile hitting his face as he watched the girls bicker and laugh. The mystery of Moon was getting more chaotic by the second, but as he looked at Iko, who was secretly smiling despite her complaints, he knew one thing for certain: this club was far from ordinary.
To Be Continued...