My Little Sister Cute Outside, But Yandere Inside!
Chapter 4 - Beautiful Flowers, but...

This afternoon, I was at the back of the cooking room. This small room was filled with piles of purple flowers.

Lillytium Rectrus is a beautiful but dangerous flower. No information on the poison of this flower was recorded in the plant encyclopedia. It was because of the royal doctrine that made this flower as the symbol of the Kingdom of Flora and must be planted for every nobleman.

They're storing poisons ready for someone to execute. The toxins produced by this flower are very diverse. With the right composition of the distillation process can produce a variety of toxic side effects such as paralysis, shortness of breath, heart failure, and other diseases. In general, the death it caused brought out a foaming mouth but with my special composition concoction, a foaming mouth became an exception.

I realized this after a report of this flower smuggling being sent to a perfume distillery. Of course it was an unusual action so I did a small investigation and found the presence of poison in it.

They are really horrible and orderly, right?

Who would have thought that such a beautiful flower would be the ultimate introduction to your life.

This time, I want to use this damned flower to be an honesty serum. Because my actions are a little beyond reasonableness, the maid sent as a spy began to show increasingly clear movements. They were very afraid that their secret as spies would be exposed.

I already know who they are, this time I need to show them how to get information that is very easy.

The Chiyuki beside me was just watching myself remove the flower leaves using a small knife. I stripped these flowers to boil them straight away. The poison content is slightly less effective but the resulting pain is very painful. Not deadly but very torturous at body.

This honesty serum I made was very easy.

You just need to grab the leaves of this flower.

Boil it to a blackish purple color.

Distilled water from the flowers.

Then put it in the syringe.

One full injection of this poison is equivalent to the pain of a burn. Believe it or not, I've done this poison test on my own body. The pain is really incredible and the antidote is very simple: use a decoction of stamens and flower pistils.

A natural package for poisons and antidotes.

Very balanced, right?

“Onii-sama... What are you doing?” Chiyuki asked me.

Should I tell him this little secret?

“I'm making an honesty serum.”

“Serum honesty?” Chiyuki was a little confused by my answer.

I just nodded and sped up the gathering of the required materials.

“For what is the serum, Onii-sama?”

Ah, this question. Do I have to answer it blatantly?

It doesn't hurt to answer, right? It's for the benefit of this family.

I came closer to his ear and whispered something.

“There's a royal spy here and brother wants to get some little information out of his mouth” whispered me.

Chiyuki was a little surprised to hear my little whisper.

I could see her red eyes turning into eyes filled with darkness.

After seeing her a few times, I wasn't too surprised by her eye color change. Merely, this piercing aura was still extremely difficult to withstand.

“Onii-sama, who are they?” chiyuki's tone of voice was slightly heavier.

“...”

I don't know what my sister's thinking but...

Something will happen if I don't hold it.

“You remember the maid in the park?”

“That they” answer me briefly.

With this short answer, Chiyuki immediately snatched the small knife in my hand and left me.

Before he really came out of my point of view, I called him.

“Chiyuki? What are you gonna do with that knife?”

Chiyuki stopped her footsteps. He turned to look at me with a sweet smile.

“Of course to talk to them” he replied.

I don't have a problem with that answer but...

The horrible smile I've seen reappears.

He doesn't want to talk to them!

Especially with a knife like that!

Oye! What's wrong with my sister anyway!

“Chiyuki..”.

“Iya, Onii-sama?”

“...”

I took a deep breath before continuing my words.

“Don't kill them, we need information in their heads”.

“Understanding!” Chiyuki smiled as she answered.

This short conversation ended with Chiyuki's sweet smile walking away from me. In the middle of his footsteps, a happy song humming from his mouth sounded.

He really enjoyed this!

I need them alive to get this honesty serum into their bodies. Please don't kill them my sister!

Actually, opening someone's mouth was easy, because I was too lazy to do physical violence to break into their mouth, I had to use the method of honesty serum to force them to open their mouth. But, if they died before I put in the honesty serum, wouldn't that be so futile?

That sounds pretty easy, right? the more they shut up, the more doses used, the more screaming the pain. It's so simple like that!

Am I getting out of the humanity side?

But, what can I do? Circumstances that forced me to do so.

I've heard someone say, “Information is power”.

When I had finished getting the first dose of Lilytium Rectrus flower poison, Chiyuki came up to me.

I could see her hair was a little messy and the knife she was carrying was a red bloodstain but it was still covered with purple stain from the Lilytium Rectrus flower.

“Onii-sama. all have been prepared!” he said cheerfully.

“Eh?”

I was surprised to hear that.

What is prepared?

My sister..What have you done anyway?

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