Sanegiyuuuu

Silent Thoughts

⸻

World

In this world, every person has a soulmate.

Once both soulmates turn 16, a connection forms.

They can’t read each other’s minds completely.

Instead…

Random thoughts slip through.

Usually only one sentence.

Sometimes a word.

Sometimes an emotion.

It happens without warning.

Neither soulmate can control it.

⸻

Rules

• Only random thoughts are shared.
• Strong emotions make thoughts louder.
• Embarrassing thoughts are the most likely to slip through.
• You hear your soulmate’s thoughts in their own voice.
• You don’t know who your soulmate is.
• The bond becomes stronger after you meet.

⸻

Sanemi

Appearance:
Messy white hair, lavender eyes, athletic build, numerous scars.

Personality:
Hot-headed, stubborn, protective, sarcastic, secretly caring.

Likes:
Training, spicy food, competition.

Dislikes:
Weakness, awkward conversations.

At exactly midnight, the world would go silent.

A single question would appear in their mind.

Choose one.

🖐 Hand — Your soulmate may control your dominant hand.

🗣 Mouth — Your soulmate may speak through your voice.

One choice.

One bond.

Forever.

No changing your mind.

No knowing who your soulmate was.

⸻

Sanemi Shinazugawa rolled his eyes at the glowing words floating in front of him.

“…What a pain.”

Talking through someone else’s mouth?

Absolutely not.

Imagine your soulmate blurting out something embarrassing in front of an entire class.

Disgusting.

He tapped Hand.

The words disappeared.

“…Done.”

⸻

Across town…

Giyuu Tomioka stared quietly at the same choice.

He didn’t like the idea of someone controlling his hand.

He enjoyed drawing.

Writing.

Reading.

He couldn’t imagine suddenly losing control in the middle of taking notes.

“…Mouth.”

The light faded.

That was that.

⸻

Monday morning.

Kimetsu Academy buzzed with its usual noise.

Students laughed in the hallways.

Teachers rushed to class.

Sanemi shoved his hands into his pockets as he walked toward his classroom.

Same school.

Same people.

Nothing had changed.

…Or so he thought.

⸻

“Morning, Shinazugawa!”

One of his classmates waved.

Sanemi lifted his hand to wave back—

Except…

“…Huh?”

His hand suddenly moved on its own.

Instead of a casual wave…

It gave the classmate a thumbs-up.

Then an awkward little finger heart.

“…”

“…”

The hallway fell silent.

Sanemi slowly looked at his own hand.

“…What.”

His classmates burst into laughter.

“Dude!”

“Who made you do that?!”

“Was that your soulmate?!”

“I DIDN’T DO THAT!” Sanemi shouted, his face burning red.

⸻

Meanwhile…

Giyuu quietly sat near the window, reading before class started.

His friends chatted nearby.

Everything was peaceful.

Until…

Without warning…

His mouth opened.

“…The loud blond boy in the hallway has nice eyes.”

“…”

Giyuu blinked.

“…”

The classroom froze.

“…What?” Sabito asked.

Giyuu slowly lowered his book.

“I…”

“…didn’t mean to say that.”

Makomo Because at that exact moment, Sanemi was standing in the hallway, staring in horror at the finger heart his own hand had

Every student knew the rumors.

At sixteen…

You’d start hearing them.

Not voices.

Thoughts.

Just one.

A random sentence from somewhere in the world.

Your soulmate.

No names.

No faces.

Only their thoughts.

Some people heard things like—

“I wonder what’s for dinner.”

“I’m tired.”

“Did I fail my math test?”

Others weren’t so lucky.

⸻

Sanemi’s first soulmate thought arrived during chemistry class.

“The blond boy two rows ahead has really nice shoulders.”

“…”

Sanemi nearly dropped his pencil.

“…What?”

His classmates looked over.

“What?”

“…Nothing.”

His face turned bright red.

Who the hell was thinking about his shoulders?

⸻

Across campus…

Giyuu quietly read his novel.

Then—

A thought echoed inside his head.

“He’s pretty… Wait, WHY AM I THINKING THAT?!”

Giyuu blinked.

“…”

Pretty?

Who?

⸻

Days passed.

More thoughts slipped through.

“I’m hungry.”

“Please stop making eye contact with me.”

*“He’s smiling…”

*“WHY IS HE SMILING?!”

*“Don’t look at him.”

*“I looked.”

⸻

Neither knew who the other was.

Until one afternoon…

Sanemi walked into the library.

Their eyes met.

Silence.

Then…

Both heard the exact same thought.

“Oh… it’s you.”

And for the first time…

Neither of them was alone in their own mind.