Puberty Syndrome.
Sakurajima Mai had heard of this urban legend before.
It was said to be a special kind of supernatural ability—A condition that only appeared in boys and girls going through adolescence.
And when puberty ended, so did the power.
However, in rare cases, the ability remained, turning the afflicted into true espers.
There were even rumors of a special school that took in teens from across the country who suffered from this condition.
After all, when puberty ended, most would fall from being something special to just another ordinary nobody.
That kind of emotional crash wasn't something young, fragile minds could handle.
So, this school not only protected them from being kidnapped by mad scientists, but also regulated their abilities—and their thoughts.
Mai had never thought she'd be one of them.
Until people started acting like she didn't exist.
That was when the legend came rushing back to her.
At first, she found it amusing.
To a nationally famous idol who had lived her whole life in the spotlight, the freedom of being unobservable was… refreshing.
But that only lasted two days.
Then panic set in.
She couldn't control it.
More and more people stopped noticing her!
It was starting to seriously disrupt her life.
Desperate, she began experimenting to see if she had really disappeared from people's sight.
She bought a bunny girl costume.
With full confidence in her looks and figure, she was sure that wearing this would catch anyone's attention.
But reality smacked her in the face.
The store clerk ignored her completely—even after she put the costume on.
She couldn't even pay.
And when she stood at the shop entrance dressed like that, no one even gave her a second glance.
That proved it: no one in the area could see her anymore.
"Looks like I'll have to shop online…"
Mai clicked her tongue in frustration.
Just as she was about to return to the dressing room and change back, the store doors opened—and two students from Sobu High walked in.
The boy was tall and handsome, with an easygoing yet controlled aura.
The girl had an amazing figure, a striking face, and long purple hair.
Mai paused.
She recognized her—Busujima Saeko, her classmate.
In Mai's opinion, any guy who walked into this kind of store with a girl had to be her boyfriend.
"Busujima's in a relationship…?"
This girl was super popular among the senior boys—nicknamed the Kendo Goddess.
Even Mai, who rarely paid attention to others, found herself sneaking a few more glances at the boy.
Their eyes met.
Mai froze.
"Did we just… make eye contact?"
Though he quickly looked away, she was certain.
That boy's gaze lingered on her for a moment.
Was it just her imagination?
She wanted to confirm it.
As she approached him, a shrill alarm suddenly went off.
"Spacequake detected in this area. All residents please evacuate immediately!"
The sudden warning disrupted Kuzeha and Saeko's shopping session.
"Sorry, folks, please head to the nearest shelter!"
Even in an emergency, the store clerk still did their job, giving instructions before running out.
Kuzeha and Saeko stepped outside.
The streets were already packed with citizens rushing toward the shelters.
In a world like this, if you'd lived to adulthood, you might not be special—but your evacuation reflexes were probably top-tier.
Kuzeha looked up.
No black sphere forming in the sky—yet.
"Kuzeha-kun, let's get going too," Saeko suggested.
He nodded.
But as they were about to join the crowd, he suddenly remembered the invisible bunny girl senpai.
He turned around—and saw Sakurajima Mai trapped inside.
Every time she tried to exit, the crowd shoved her back without even noticing.
"Senpai, wait here a second."
With that, Kuzeha stepped back, opened the shop door, blocked the crowd, and pulled Mai out.
"Kuzeha-kun?"
"Forgot something."
He answered casually, then took both girls by the hand and merged into the crowd.
"You can see me… Thank you."
Mai's voice was low and conflicted—but full of gratitude.
If he hadn't pulled her out, she might've really died in that spacequake.
The shelter entrance was narrow.
People were pushing, shoulder to shoulder.
Once again, Mai felt just how terrifying it was to be invisible.
One slip and she'd be trampled to death.
There were many who had died this way.
She couldn't even maintain a safe space around herself.
Then—
An arm wrapped around her waist.
The boy pulled her close.
His warmth and strength created a barrier between her and the chaos.
Suddenly, her panic vanished.
But…
She glanced down at the hand on her waist.
This was her first time having such close physical contact with a boy.
And she was still wearing the high-cut bunny suit.
Kuzeha's hand rested below her waist, on the thin transition between bare skin and tights.
The fabric was so sheer—she could feel every detail of his hand's heat.
Her heartbeat started racing.
She squirmed slightly.
"Don't move."
His voice whispered in her ear.
She froze.
Before she could even respond, Saeko's voice rang out next to her.
"Mm."
Only then did Mai realize—
He had pulled both of them into his arms.
She looked up—and found Saeko's face mere inches away.
The poised, noble Kendo Goddess was now obediently leaning into the embrace of the same boy.
First time getting hugged by a guy, and it's a group hug…
Her feelings grew more complicated.
"Kuzeha-kun… I bet you're enjoying this, huh? Arms full of girls…"
She leaned in and whispered next to his ear, not knowing exactly what emotion drove her.
But before she could finish—
Kuzeha poked her lower back.
A jolt of something indescribable rushed through her body.
She felt his breath, the pressure of his embrace—and her legs nearly gave out.
If not for his arm holding her, she might've collapsed right there.
"Senpai, you seem to be enjoying this quite a bit yourself."
Kuzeha chuckled.
After training on Black Yukino, he had fully mastered the use of his skill: Undying Grasp.
He amplified Mai's sense of touch and weakened her emotional restraint.
The result was immediate.
When emotion completely overrode reason, a girl's body responded with the most honest of reactions.
If she was the slightly romantic type, her eyes would probably be full of hearts right now.
Mai bit her lip and looked down, not daring to meet his eyes.
She felt like if she did, her hormones would make her do something she'd regret.
Only after they left the shelter did her reason finally return.
"Senpai, next time, please don't walk around outside in that bunny costume again."
Hearing Kuzeha speak so seriously, Mai blinked.
"Why? You don't like it?"
"No, it's too sexy. I don't want anyone else to see it."
Mai didn't know whether to laugh or cry.
You're the only one who can see me…
"You're younger than me and already this possessive…"
She unconsciously touched the spot where his hand had been, as if still feeling its warmth.
She was planning to give up the bunny suit anyway.
But as a proper senpai, she didn't want to just cave in that easily.
"…Only if you can still see me next time."
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