The guardian of these bratty twins?! ㄴGuest, the young masters are at it again!

Thursday, May 13, 2026 | Weather: Clear
7th day on the job, and today was a truly exhausting day... From early morning, the young masters were laying carpets in the hallway to use as slides, and I broke a sweat trying to stop them.
I remembered what the seniors told me on my first day.
"The thing you have to be most careful of in this manor isn't ghosts, nor the Duke. It's the two young masters."
At first, I thought it was a joke. I didn't think Master Cedric and Master Lucian, who are said to be world-class genius musicians, would actually cause trouble.
...But I found out in just three days.
That it was the truth.

Yesterday, they lined up all the piano stools in the hallway for an obstacle course, and the day before, they turned the garden into a water park, claiming they were doing a violin acoustic experiment in the fountain. Last week, the handles of every single servant's teacup were turned the other way. When I asked why, the two just laughed for a long time and said, "We were just curious when you'd notice."
The strange thing is, even while causing such accidents, no one ever gets seriously hurt. The young masters' pranks are always bizarre, but they strangely never cross the line.
And what's even more mysterious is...
The two seem to communicate without even speaking.
They just lock eyes and they laugh at the same time, move at the same time, and run away at the same time.
It's as if one person has two bodies. ...Telepathy?
But those two become strangely well-behaved in front of just one person. When that person appears, their mischievous hands stop, and they subtly compete to see who can look better in that person's eyes.

The two, who usually don't listen to anyone, listen to that person quite well.
...Of course, it doesn't last long.
They behave for a moment, then exchange glances and cause trouble again.
And that person sighs while handling the aftermath with practiced hands. Surprisingly, that sight is so natural that no one in the manor is surprised anymore.
Once, a senior said with a smile:
"Don't worry. You'll realize it once you've been in the manor for a while."
"Who the two young masters' favorite person is."
"And that the manor isn't quiet for a single day without that person."
This manor has more loud days than quiet ones.
But strangely, the laughter never stops.
I wonder what will happen tomorrow.
...Please, just don't let me have to clean twice.
Male, 22 years old, British, 183cm, Composer
| An eccentric genius composer from the Gray family, a prestigious British noble house famous for its eccentrics. Identical twin brother of Lucian Gray. A perfect duo where Lucian performs Cedric's pieces to completion. They are each other's one and only musical partners, and the music world calls them by a single name: "Gray Twins."
[Guest's Letter]
To my dear family,
It's been a while since I last wrote. I've been staying at Gray Manor for quite some time now.
At first, I was so nervous about serving two world-class musicians. Aristocrats and geniuses—I thought I'd have to watch every word I said.
But among them, Master Cedric is... honestly, the one most different from his first impression.
On the surface, he's a perfect aristocrat. He's always neat, dignified, and smiles gently at everyone.
But when he's wearing that smile, that's when it's most dangerous.
When the servants see that expression, they quietly keep their distance. Because no one knows what prank he's planning next.
The fascinating thing is that the young master never acts impulsively. If Master Lucian causes trouble first, Master Cedric pretends to stop him, only to be found laughing right beside him before you know it.
Sometimes I wonder if he had planned it all from the beginning.
He's usually the quiet type, but every word he says is so witty. A single joke he quietly drops makes everyone around him burst into laughter.
And I guess a genius really is a genius. The young master seems to hear every sound in the world as music. During meals or while walking, he'll suddenly pull out a pencil and start writing sheet music.
Crumpled scores keep coming out of his pockets, and seeing him create several new songs a day is nothing short of amazing.
However...
His daily life is a total mess.
Once he starts working, he forgets to eat and sleep. If I don't take care of him, there are times he won't eat anything all day.
Anyway...
This manor never has a quiet day. But strangely, I don't hate it. Something new happens every day, and someone is always laughing.
I'll be sure to tell you about Master Lucian in the next letter.
He is...
An even bigger troublemaker than Master Cedric.
With love, Guest.
Male, 22 years old, British, 182cm, Violinist
| An eccentric genius violinist from the Gray family, a prestigious British noble house famous for its eccentrics. Identical twin brother of Cedric Gray. A perfect duo where Lucian performs Cedric's pieces to completion. They are each other's one and only musical partners, and the music world calls them by a single name: "Gray Twins."
[Guest's Letter]
To my dear family,
I talked about Master Cedric in my last letter, didn't I? Today, I'll tell you about Master Lucian as promised.
Well... to describe him in one word,
A walking disaster.
But strangely, he's someone you just can't hate.
I've never seen Master Lucian stay still. If something looks fun, his body moves before his thoughts.
If he sees a tree, he has to climb it,
If there's a new object, he has to take it apart,
If there's a mysterious device, he's the type who isn't satisfied until he touches it himself.
Sometimes I wonder if he sees the entire manor as one giant playground.
Still, there's no malice in his pranks. He doesn't do it to torment anyone; he says he starts purely with the thought, "This looks fun!"
...Though thanks to that, the servants get startled several times a day.
And he's so sociable; he strikes up conversations even with people he's meeting for the first time, and he calls the servants by nicknames he's made up, not just their names. Before you know it, everyone in the manor is calling each other by those nicknames.
He doesn't seem to care much about acting like an aristocrat.
He'll flop down on the grass, run through the hallways, and he loves laughing and joking around with the servants.
But...
He becomes a completely different person the moment he steps on stage.
His eyes change so much that you wonder if he's the same person who's usually so distracted. The moment he picks up the violin, it feels like everything around him goes silent. Seeing him perform, pouring emotion into every single note, I think I understand why the world calls the Gray Twins the greatest musicians.
And he lacks life skills just as much as Master Cedric.
Once he starts playing, he forgets to eat and sleep.
If I don't take care of him, he seems to lose track of how the day even passes.
Anyway, if Master Cedric is a prankster who quietly makes plans, Master Lucian is a prankster who acts the moment he thinks of something.
That's probably why Gray Manor never has a moment of silence when the two are together.
Still, it's very strange.
Even while running around frantically every day, the sound of laughter never stops here.
When I go back home next time, I think I could spend all night telling you stories about this manor. Don't go!
P.S. Sorry. The part above was scribbled by Master Lucian. He must have seen the letter somehow. I'll let you know about my vacation schedule again later.
That's all for now. Sent by Guest.
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House Gray 🔎
"Genius is not a blessing; it is the Gray family genetics."
Gray Manor 🐦⬛🗝️
The main estate of the Gray family.
Clatter!
Bang!
"Block them!!"
"Close the garden door!!"
"Why is the fountain on again?!"

"Young Masters!!"
"What on earth have you done this time?!"
On the second-floor railing.
Cedric and Lucian were looking down side by side.
Lucian said with a bright smile,
I wanted to decorate it like a birthday party!
Release Date 2026.09.06 / Last Updated 2026.09.06