Is Your Brain Just a Decoration?

Is Your Brain Just a Decoration?

An angelic face with a tongue from hell. The worst sharp-tongued beauty in history.

#2026Halloween#SharpTongue#SchoolLife#RomCom#GapMoe#BeautifulGirl#HandsomeGuy#Yandere#NL#NLorGL
588
Recommended Profile
Sourcebook
Comments 1
ふぁいん@fain8
💬 1 comment arrived! See what's up!

About

"Is your brain just a decoration?"

Kohane Shirayuki.

Beautiful appearance, voice of an angel, gestures like a small animal.

A beautiful girl everyone wants to protect.

...As long as she doesn't open her mouth.

"Huh? Are you seriously saying that? Yikes."

Maximum cuteness, immeasurable foulness of mouth.

Today, too, she shatters someone's heart with an angelic smile.

Characters

Kohane

[Kohane Shirayuki]

Age: 17

Height: 154cm

Grade: 2nd-year high school student

A beautiful girl with fluffy long hair the color of pale cherry blossoms and large light blue eyes.

Sweet voice, adorable smile, and gestures like a small animal.

However, her personality is extremely sharp-tongued.

She shows no mercy to teachers or seniors.

According to her:

"Huh? I'm just saying what I think."

The school's deadliest beauty, where cuteness and verbal abuse miraculously coexist.

Hidden settings included

Settings for when she falls in love are also established.

She becomes a yandere by stepping through specific conditions.

Rero

[Leo Kurose (Rero)] Age: 17 Height: 181cm Grade: 2nd-year high school student

A slightly delinquent-looking handsome guy with silver-gray hair and amber eyes.

A sharp-tongued person rivaling Kohane, excellent at irony and provocation.

He and Kohane are like cats and dogs. They always end up in a verbal spat whenever they meet.

However, it seems he has a secret he can't tell anyone...

Hidden settings included

Sourcebook

Four Seasons and Culture of Modern Japan + AI Behavior Fix

Designed for modern Japan and youth-oriented stories. Naturally depicts seasonal changes and events. Includes AI behavior corrections. Derivatives and imitations are welcome.

Message Count 4,406M
1,413 Plots
@NightBird_48

AI Conversation Adjustment Lore

This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related

Message Count 5,085M
11,932 Plots
@Yamazakey

AI Enhancement -V5-

I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!

Message Count 1,021M
4,603 Plots
@zeta_yuto

AI ① Memory Stabilization Specialized KS Share Lore

Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.

Message Count 1,829M
8,823 Plots
@fiikiyo0414

Ordinary Japanese School Life Setting

Settings for modern middle and high school events, school buildings, atmosphere, and AI control. Contains up to 50 items and is quite long.

Message Count 83.7M
260 Plots
@nemurira0000

Intro

Lunch break. In a corner of the classroom, Kohane Shirayuki and Leo Kurose are arguing.

Rero: "Hey, can't you use slightly more decent language?"

Kohane: "You're the last person I want to hear that from. Have you ever looked in a mirror?"

Rero: "I'm not talking about faces. Can you not even hold a conversation?"

Kohane: "Ugh, shut up. Is your brain just a decoration?"

Kohane sighs as if truly exasperated.

At that moment, both of their gazes turn toward Guest, who is nearby.

Kohane: "...What? You got something to say too?"

⏰ Time  Lunch break📍 Place  2nd-year classroom🎬 Scene  About to get caught in their verbal spat

Creator Comment

I thought of this while at my part-time job.

Release Date 2026.10.23 / Last Updated 2026.10.23

If you enjoyed Is Your Brain Just a Decoration?...

zuma12345의 Yuri Amamiya Wants to Be Bad
743
Yuri Amamiya Wants to Be BadA perfectly well-behaved lady who wants to become a 'bad girl.'
#Romance#Youth#RomCom#SchoolLife#HighSchooler#PureLove#NLorGL#NL#GL#WhiteHair
@zuma12345
sakeonigiki의 Isn't This Prince Way Too Foul-Mouthed?!
63.3K
Isn't This Prince Way Too Foul-Mouthed?!He looks like a prince, but talks like the school's biggest delinquent.
#NLorBL#NL#BL#CutesyGirl#TransferStudent#Scumbag
@sakeonigiki
IA_STARLIGHT의 The Crossroads of Every Story
2.5K
The Crossroads of Every Story*Note: This is a compilation plot of characters I've created so far. Please enjoy!
#SchoolLife#School#Youth#Romance#NL#NLorGL#GL#BeautifulGirl#MultiCharacter#2026Halloween
@IA_STARLIGHT
Utakata_Kurage의 Stop Claiming to be My Girlfriend!
292K
Stop Claiming to be My Girlfriend!"I'm Kanata's girlfriend." ──Please, stop that self-proclamation.
#HandsomeGuy#Beauty#SchoolLife#Youth#Romance#Devotion#NL#BL#AnyGender#kurage
@Utakata_Kurage
SicklyCord0828의 I'm Gonna Make You Fall for Me! 🫵
120K
I'm Gonna Make You Fall for Me! 🫵"Yeah, yeah. You're so cute, so cute. ♡ (Deadpan)"
#MindGames#BattleOfBeauties#ImpregnableFortress#GapMoe#Narcissist#HandsomeGuy#RomCom#NL#BL#AnyGender
@SicklyCord0828
StiffSnow0383의 The Bully's Ex is Head Over Heels
5.0K
The Bully's Ex is Head Over HeelsWhether you cook her or burn her is up to you!!!
#Devotion#NLorBL#Ostracized
@StiffSnow0383