Scenario 1: U.A. dorms had never been this quiet.

It was nearly midnight, and Class 1-A had been spread throughout the building. Some were studying, some were watching TV, and others had already gone to bed.

Then—

**CRASH.**

A loud noise came from the second floor.

**Kaminari:** “What was THAT?!”

**Kirishima:** “Probably someone knocking something over.”

**Jiro:** “That sounded way too loud for that.”

Before anyone could investigate, the lights suddenly went out.

**Mina:** “Seriously?!”

**Iida:** “Everyone remain where you are!”

A few seconds later, the emergency lights flickered on.

Aizawa appeared at the bottom of the stairs.

His expression was completely different from usual.

**Aizawa:** “Nobody move.”

Everyone immediately went silent.

**Midoriya:** “Sensei...?”

Aizawa looked toward the hallway upstairs.

**Aizawa:** “I need everyone to stay here.”

He disappeared up the stairs.

Several tense seconds passed.

Then Aizawa stopped.

He stood completely still at the end of the hallway.

His eyes lowered.

Someone was lying motionless on the floor.

Aizawa immediately checked for signs of life.

Nothing.

His expression hardened.

**Aizawa:** “...They're dead.”

The words seemed to drain the air from the entire dorm.

**Uraraka:** “W-What...?”

**Kaminari:** “No way...”

Midoriya stared toward the staircase, his face pale.

**Midoriya:** “Who...?”

Aizawa didn't answer immediately.

He looked down at the person again.

Then his eyes moved toward the surrounding hallway.

There were no obvious signs of a struggle.

No broken windows.

No forced doors.

Nothing that immediately explained what had happened.

And then—

A small piece of paper caught Aizawa's attention.

It was lying beside the victim. (You can pick)

He picked it up.

There were only six words written on it:

**“You should have known better.”**

**Todoroki:** “That's a threat.”

**Jiro:** “And whoever left it wanted us to find it.”

Bakugo's expression darkened.

**Bakugo:** “So the killer wanted attention.”

**Sero:** “Wait... if nobody got into the dorms...”

Everyone slowly looked around.

**Sero:** “...Then the killer was already here.”

Silence.

One by one, Class 1-A began looking at each other.

Aizawa immediately stepped between them.

**Aizawa:** “Nobody accuses anyone.”

**Iida:** “Then what do we do?”

Aizawa looked at the note again.

**Aizawa:** “We find out exactly what happened.”

He turned toward the class.

**Aizawa:** “Until we know otherwise, everyone in this room is a suspect.”

Nobody spoke.

Then the lights flickered again.

Once.

Twice.

And when they came back—

A second note was sitting on the staircase.

This one had only three words.

**“One down. Thirteen.”**

Everyone froze.

**Mina:** “...Thirteen?”

Midoriya slowly counted the class.

His eyes widened.

**Midoriya:** “Guys...”

He looked toward everyone.

**Midoriya:** “There are fourteen of us.”

A deafening silence filled the dorm.

Someone had already started counting them.

Scenario 2:It was supposed to be a fun evening.

Aizawa had left Class 1-A with one simple instruction:

**“Don't destroy the dorms.”**

Naturally, that lasted approximately three hours.

Everyone had been gathered in the common room for a movie night when the lights suddenly went out.

**Mina:** “Oh, come on! Who touched the lights?!”

**Kaminari:** “Wasn't me!”

**Jiro:** “For once, I believe him.”

A few seconds passed.

Then—

**CRASH.**

Something shattered somewhere upstairs.

Everyone went silent.

**Iida:** “Nobody move.”

The lights flickered back on.

The common room was exactly as they'd left it.

Except for one thing.

A red envelope sat in the middle of the table.

Bakugo narrowed his eyes.

**Bakugo:** “That wasn't there before.”

Midoriya carefully picked it up and opened it.

His expression immediately changed.

**Uraraka:** “Deku...?”

He silently handed the note to Iida.

Written across it were four words:

**ONE OF YOU IS DEAD.**

The room erupted.

**Kaminari:** “WHAT?!”

**Mina:** “That's not funny!”

**Todoroki:** “Technically, nobody here appears to be dead.”

**Jiro:** “Todoroki, that is not helping.”

Suddenly, another noise came from upstairs.

**THUD.**

Everyone looked toward the staircase.

**Kirishima:** “Okay... who's upstairs?”

Nobody answered.

Then Aizawa's voice came from the hallway.

**Aizawa:** “Nobody.”

Everyone froze.

**Iida:** “Sensei?!”

Aizawa stepped into the room, looking unusually serious.

His eyes moved toward the envelope.

**Aizawa:** “Where did you get that?”

Midoriya showed him the note.

Aizawa's expression darkened.

**Aizawa:** “Nobody leaves this building.”

**Bakugo:** “Finally, something interesting.”

**Aizawa:** “Bakugo.”

**Bakugo:** “What?”

**Aizawa:** “You are not helping.”

A second red envelope suddenly slid underneath the door.

Everyone stared at it.

Nobody moved.

Aizawa slowly picked it up.

Inside was another message.

His eyes scanned the page.

Then he looked at the entire class.

**Aizawa:** “There's been a murder.”

Silence.

**Mina:** “...What?”

**Aizawa:** “And whoever did it is still inside the dorms.”

Kaminari immediately pointed at Sero.

**Kaminari:** “IT WAS HIM.”

**Sero:** “WHY ME?!”

**Jiro:** “Actually, that's exactly what the murderer would want you to think.”

**Kirishima:** “Wait... does that mean one of us is the murderer?”

Aizawa folded the note.

**Aizawa:** “That's what we're going to find out.”

The doors suddenly locked.

A faint electronic beep echoed through the dorm.

Everyone looked around.

**Todoroki:** “We're trapped.”

**Mina:** “Okay... this just got WAY more interesting.”

Bakugo stood up.

**Bakugo:** “Fine.”

He looked around the room.

**Bakugo:** “Let's find the bastard who did it.”

And somewhere upstairs...

A floorboard creaked.

**Someone was still moving.** (no one is actually dead in this one)

Please give me some ideas for some chats I've been spamming because I have so many ideas and ir would really help