My Little Sister Cute Outside, But Yandere Inside!
Chapter 26 - Rebuilding

Sometimes, our lives encounter some problems that are not worth discussing.

The plan to rebuild our residence led to the addition of unnecessary space.

I need to emphasize here, but our family seems to have a principle to take things seriously.

For example, there are 12 types of detention rooms and 32 types of interrogation rooms.

It seems, violence is starting to become uniqueness of this family.

I didn't have a problem with our family's information extraction technique, but the addition of a corpse storage room bothered me enough. I think it's a lot better than throwing away their corpses to feed on forest monsters. At least our humanity side is a little enlightened.

Right now, I'm with my family to discuss the needs that might be needed.

“Karl, are you sure you will build ten levels of basement?”

“There's no harm, right? The first floor will be filled for groceries, the second floor of the place of detention, the third floor of the place to collect information, and the rest for our research purposes.”

“Research?”

“Well, part of it is personal research and the rest.. Dad knows for what it is.”

“Don't make too many movements that cause panic, Karl”

“I know, Dad. Therefore I will develop our technology for our benefit.”

“Yeah, good then. Ah, I remember.. Why do you want to make our private lake a research object too?”

“Well, I plan to create a stream that connects our private lake with Grandpa's military base.”

“That's a pretty long line.”

“But it can be done”

“Sometimes I'm surprised by the contents of your head, are you trying to create a new river? Or there are other ideas for developing water guns.”

“Please.. don't expect much from me.”

“...”

“Onii-sama? Can we be in the same room again?”

This time, Chiyuki laid out her latest proposal.

“Em, may but it looks like we have to build a wider room again.”

“Nee.. Master.. Can my room be filled with research equipment?”

“OK, but if you want to use the equipment it means your room is at the end. Pretty dangerous if your test fails, right?”

“Then, may we be in the same room and the research equipment room is separated into a new room?”

What else is this? the longer their requests get weirder. Why do they want a room with me?

“Onii-sama..”.

“Master..”.

Like a cute little cat, they embraced my body. I have no problem with Chiyuki but Mercedes seems to be overconfident lately.

“Uh, alright.”.

I surrendered.

For the sake of my ambition that still has not materialized, I am forced to agree to their request.

Tonight and accompanied by Sebastian, I changed some of the blueprints of our residence.

Sebastian seems to agree with our change of residence. Even when I asked for his opinion, my plan was much better than the previous room placement.

Our small discussion prompted me to look for additional potential places that might be able to insert something like hidden rooms, hidden weapons, even rooms for evacuation in case something happens.

Well, my building design is strong enough to withstand a natural disaster but we don't know what a natural disaster will look like, do we? Just in case, I added some rooms that only family members knew about.

As the day began to turn morning, some of the people chosen by my father transported the remaining dragon scales and along with the money left behind as early payers. It seems that my father has forced them to buy those dragon scales beyond the normal price.

Now, the people I'm waiting for are coming.

They are people who are talented enough to destroy and build things.

“Kids.. let's get together!” my father said when he saw them.

A strategy of demolition and construction is explained even to the smallest part. All this information goes into the highest level of secrecy, so when they have all built it then Mercedes will take over their memories.

We don't want our house to be a disaster anymore.

On this day, the calendar of the Kingdom of Flora records that Duke Flora changed the arrangement of his residence and split his private lake into tributaries. Right on that day, a development revolution was recorded. Duke Flora became the first building to have strange features in it. The important information regarding the vulnerable spots in Duke Flora's residence became useless. Several other noble spies moved back to observe the change in Duke Flora's residence.

The massive construction ended in just three days.

With the victim in the form of energy and hours of sleep are cut off.

[...]