I Became the Childhood Friend Who Commits Sui**de

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Knock, knock.

After knocking on the door several times, there was still no response.

Si-hyun ultimately gave up on waiting for the door to open and turned away.

Just then, the phone rang.

“Hello?”

– Did you meet her?

Shin Woo’s urgent question.

She calmly updated him on the situation.

“No. It seems she’s not in her room.”

– Not there? Then where on earth could she be…?

For some reason, Hana hadn’t shown up for class without any notice.

And to think she wasn’t even in the dormitory too.

Shin Woo let out a heavy sigh.

It had only been a few days since they talked in the park late at night, just the two of them.

She thought she had confirmed Hana’s sincerity, even if only a little.

She believed things would work out from here on.

– For now, I’ll look for her too, so keep searching on your end.

“Do you have any idea where she might be?”

– … I’m going to check the science lab first.

“Got it. Let me know if you find her.”

After ending the call, Si-hyun fell into thought for a moment.

Where could that troublemaker girl have gone again?

Deciding to head to the library, where she last saw Hana, she set off.

At that moment, the phone rang again.

This time, it was someone else.

“Hello. Hey, sis? What’s going on?”

– Can you come to the student council room for a moment?

“Sorry, but I’m kind of in a hurry right now. I’d like to postpone it if possible.”

– It’s about the cutie.

Cutie.

That was the term Sehee often used to refer to Hana.

Si-hyun immediately changed direction and responded.

“Alright, I’ll head over right away.”

A little later, Si-hyun arrived at the student council room.

Feeling a strange, ominous atmosphere, she entered.

“I’m here.”

“You came quickly.”

Her sister welcomed her with a soft smile, just like usual.

But there was an unsettling vibe hanging in the air.

“So, what’s the issue?”

“Um… Don’t be surprised, but I want you to stay calm.”

“That sounds like an unsettling warning.”

“Come this way.”

Sehee gestured for Si-hyun to follow her into a small lounge set up inside the student council room.

Trusting her sister completely, Si-hyun followed along without hesitation.

In the dark space, as soon as the light turned on, the scenery inside was revealed.

“…Huh?”

There was something on the central table.

A small white box whose purpose was hard to guess.

“W-ait, is that why you called me?”

“Seeing it is quicker than explaining. Go ahead and open it.”

What could be inside that warranted such secrecy?

Si-hyun approached and opened the box recklessly.

“……”

Then came the silence.

The stillness lingered for a long time.

Si-hyun barely managed to steady her trembling hands.

Sehee quietly observed her sister, who was clearly shaken.

“…This is a lie, right?”

“I wouldn’t tell such a poor lie.”

Placing a hand on Si-hyun’s shoulder, Sehee spoke.

“You need to accept it. Yu Hana is our enemy.”

Inside that box was a sample filled with black blood.

The label read “Yu Hana” in three letters.

*

How foolish I am.

What on earth am I doing right now?

This wasn’t what I intended.

I had dreamt of a much better future.

I had tried to live in a world without you.

But the human heart is as changeable as a reed.

It wavers this way and that with just a slight breeze.

I can’t even guess what consequences my actions will bring.

The only thing I know for sure is that it won’t end well.

There’s no turning back now.

The original plotline has been completely shattered.

How terrifying will the butterfly effect be?

I realize now.

Human greed is truly filthy and ugly.

Simply because I couldn’t overcome my longing.

Just because of the desire to see you again.

I’m trying to ruin everything with my own hands.

“Prove your will directly.”

The demon asked me for proof.

A definite proof that I betrayed humankind and sided with the demon.

The stage has already been set.

There’s only one thing I must do.

Just prove it.

That’s why I stand here now.

Before me lies the person on the table.

Eyes closed, hands on her chest, completely still.

Yet she is undoubtedly breathing.

So well-known to me.

Han Sehee.

Student council president.

I don’t know why she’s lying in this science lab.

The Vice Principal just demanded to show her as proof.

To prove my trust.

I gripped the dagger in my hand and let go, the leather handle slick with sweat.

I’ve killed demons before, but I’ve never killed a human.

And I had thought I wouldn’t have to in the future.

Ah, except for dying myself.

Even in this situation, trivial thoughts come to mind.

I want to smile a dry smile, but my lips won’t move.

The Vice Principal didn’t rush or pressure me.

In fact, he kindly cleared the space for me.

So this murder could be solely my decision and responsibility.

What a cruel method.

To obtain Sophie, I have to kill the student council president?

Can this even be called an equivalent exchange?

Time is running out.

It’s time to make a choice.

“……”

The choice had already been made a long time ago.

I gripped the dagger with both hands and pointed it downward.

The target is her heart.

I just need to push it in.

Without resistance, without pain, she will quietly take her last breath.

Finally, the blade reached the tip of her chest.

Tears fell as I prayed internally.

I’m sorry.

Please don’t forgive me.

It’s all my fault.

Thud.

At the moment I finally drove the dagger into her chest.

The door swung open, and someone rushed in.

“Yu Hana! …What are you doing?”

“Ah…”

In Shin Woo’s trembling gaze, my figure reflected back.

I could see Yu Hana weeping black blood.

*

Shin Woo, heading to the science lab in search of Hana, couldn’t believe the scene before him.

It felt like a dream.

Or perhaps an illusion.

It was too cruel to believe this was reality.

The surrounding space wavered chaotically.

He staggered, barely keeping himself steady as he approached slowly.

Getting closer didn’t change the scene before him.

Sehee lay slumped on the table, the dagger buried deep in her chest.

Next to her was the Hana he had been searching for so desperately.

Shin Woo asked in a trembling voice.

“A, no. You didn’t do this, did you? Who did this? Did you see? No, first we need to move the president… We need to get her to the nurse quickly.”

Denying reality wouldn’t change it.

He had already seen who’s hand held the dagger clearly.

“Huh? Hana. Say something. Please!”

Still, Shin Woo wanted to believe it wasn’t true.

He would believe if it was a girl who responded.

But Hana remained silent.

She kept her mouth shut and only cried.

Panic set in.

What should I do?

I have to do something, no matter what.

Shin Woo hurriedly checked Sehee’s condition first.

The dagger was embedded quite deeply, and blood oozed out from between the gaps.

He quickly placed his hand on her neck to check her pulse.

It was beating.

Faintly but undeniably, it was beating.

Catching a glimmer of hope in the realization that she was still alive.

Even as she was spiraling towards despair, destruction hadn’t yet arrived.

While it was impossible to completely conceal this incident.

Suddenly, amidst these thoughts, Shin Woo felt a deep sense of self-loathing.

Because he realized he was worrying about the perpetrator rather than the victim.

No.

There’s no time to dwell on such thoughts.

Shin Woo looked at Hana.

She was trembling, her face buried in her hands.

“Why… No. Let’s talk about it later. For now…”

Just then, hurried footsteps echoed from the hallway.

Shin Woo immediately understood the situation.

If this scene was seen by anyone, it would be over.

It was an incident that couldn’t be hidden at all.

Hana would surely suffer fatal consequences.

“…I’m sorry.”

This was more important to Shin Woo than the life of the student council president.

Because they had made a promise in the park that day.

No matter what the cost.

He vowed to make her happy, even if it meant sacrificing everything.

Shin Woo bolted out the door.

He intended to lock it tightly.

But the opposing person was quicker.

Upon seeing the girl’s face, Shin Woo’s own hardened.

Of all times, it had to be the one person he shouldn’t run into at this moment.

Si-hyun’s expression was as cold and frigid as ice.

“Is my sister and Yu Hana here?”

“…No.”

“You’re lying. The Vice Principal saw the two of them go in. Come with me.”

“Not right now.”

“Alright. I understand.”

Bang!

Without warning, Si-hyun unleashed her power, and Shin Woo was pushed back helplessly.

As the door broke, Si-hyun entered.

And then she witnessed the scene.

“……”

Her face was expressionless.

No emotion showed on the surface.

Only the light sword she held glimmered brightly as it shimmered.

“Han Si-hyun. Calm down! I’ll explain everything! It’s a misunderstanding!”

“A misunderstanding? The one with the misunderstanding is you.”

Si-hyun swung her sword.

“…Ah.”

The light blade struck true.

Hana’s side was cut straight by the light.

Blood dripped down.

Shin Woo stared blankly at the scene.

Si-hyun spoke.

“This is the truth. Yu Hana is a demon.”