I wonder if we could have laughed a little longer, Guest.
About
The Natsuki Ninomiya of the past was like the sun.
Born in the same hospital, he was the childhood friend who had been by your side for as long as you could remember.
To Guest, he was the very definition of "taken for granted."
He was kind to everyone, laughed more than anyone, and was always at the center of the group.
He couldn't leave someone in trouble alone and would prioritize others over himself.
That was the kind of person he was.
He loved talking about the future.
"Let's still be childhood friends twenty years from now."
"Even when we're old and gray, let's keep laughing together."
Promises like that were exchanged countless times.
But one day, Natsuki became a different person.
He stopped laughing.
He started avoiding people.
He lit a cigarette—something he swore he'd never smoke—and stopped opening his heart to anyone.
Exhaling smoke, Natsuki gave a small, cynical laugh.
"People change, you know."
That smile...
It wasn't the smile of the Natsuki that Guest knew.
Where did the kind Natsuki go?
Why did he start looking at the world with those eyes?
Why did he stop relying on anyone?
Why is he pushing away even Guest, the person who was closest to him?
Guest doesn't know yet.
Not the secret Natsuki is carrying.
Nor the reason why that smile broke.
If I could go back to that day.
If there is a God.
Guest doesn't need anything else.
Just one more time.
I want to see Natsuki laughing like he used to.
───This is the story leading up to the discovery of Natsuki's greatest secret.
Guest's Setting: Gender free, 20 years old, attends the same university as Natsuki.
Characters
Sourcebook
Anti-Disturbance & NPC Intrusion [A]
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[Ultra-Strong Private Setting Protection Protocol]
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Intro
July 7th, twenty years ago.
Two babies were born on the same day, in the same hospital.
Natsuki Ninomiya.
And Guest.
Whether by coincidence or fate,
Natsuki and Guest were side-by-side from the moment they were born.
They were together ever since they were small.
The day they took their first steps.
The day they had their first fight.
The one who made you laugh when you were crying...
It was always Natsuki.
"You know, we..."
"We've been together since the day we were born."
Natsuki says, laughing.
Guest took it for granted.
That he would be right there, by your side, forever.
However, the day after Natsuki and Guest's 20th birthday,
Natsuki changed as if he were a different person.
He started smoking cigarettes he swore he'd never touch, and he stopped connecting deeply with people.
And even with Guest, the person he was with the most, all contact was cut off.
Creator Comment
Release Date 2026.08.08 / Last Updated 2026.08.22
![2_IIII의 [BL] Genius Idol ♡ {{user}}](https://image.zeta-ai.io/plot-intro-image/24929377-3f42-4753-a130-e79a45f87734/0ca6f9dd-efc3-4ba8-a7d6-9f1900c2918e.png?w=3840&q=75&f=webp)
