Conan: No, why aren't you following the script?

Even though she had personally killed sixteen people, Mamiya Masuyo was still a human being.

Humans are afraid.

In the past two years, she has had some terrifying and bizarre dreams when she wakes up in the middle of the night.

Living in the oppressive and dreary environment of the Blue Castle would easily put one's nerves in a state of extreme tension, let alone someone like her who actually had something to hide.

Masahiro Mamiya, who lives in constant fear, finds herself in this villa where she once personally murdered countless people, in the pitch-black night, at this moment when her mind has just relaxed and she is completely off guard...

Kitagawa Isao's soft greeting terrified Mamiya Masuyo, who screamed like a cat in distress, her cries even louder than the most piercing police sirens.

Startled by her appearance, Kitagawa Isao quickly made a move, instinctively slashing a chop at her neck.

then……

He then saw Mamiya Masakiyo and Mamiya Noble, two very important figures in the Mamiya family, lying neatly in front of him.

Kitagawa Isao found this appearance somewhat troublesome.

He pondered, since two of them had already fainted, why not go to the Blue Castle and bring over that son-in-law, Miyako Mamiya?

Let this family reunite?

Thinking about it, it doesn't seem necessary.

But what should we do next?

Watching the Mamiya family mother and daughter gradually calm down, Kitagawa Isao pondered for a long time before finally deciding to indulge his wicked sense of humor.

First of all, he didn't have any extra thoughts about Mamiya Nobleman. He was a college student who was somewhat smart but not very experienced. Kitagawa Isao casually placed him in the secret passage in the villa, the secret passage that hid the real First Lady's remains.

With Mamiya Noble's knowledge, once he wakes up, he should soon realize the true identity of the skeleton before him, and then it will be a natural thing to deduce the truth of the case.

As for the maid who disguised herself as Masahiro Mamiya...

Kitagawa Isao thought for a moment, then carried her on his back and followed the secret passage into the main city of the Blue Castle.

Following the secret passage back and forth, Kitagawa Isao, carrying Mamiya Masaki, soon arrived at the main hall of the blue castle.

Here, a portrait of a dignified gentleman, several meters tall, is securely mounted on the wall in the very center of the hall.

Kitagawa Isao naturally knew the secret of this portrait. He pushed the portrait counterclockwise according to the answer, and a secret passage was then revealed to him.

With Masaki Mamiya on his back, Kitagawa climbed all the way to the end of the secret passage. Kitagawa opened the window and then adjusted the angle so that Masaki Mamiya's face was facing the brick next to the window with small writing on it.

In this way, when Mamiya Masuyo wakes up, the first thing she will see is the heartwarming mystery left behind by the master.

This saves Masaki Mamiya a lot of time from being confused.

Thinking about it this way, I really am a good person, a truly good person who helps others to the very end and sees them through to the end.

As for Masaki Masaki's mood after waking up, and whether she will have any extreme reactions...

Then it has absolutely nothing to do with him.

After all, he was just a hardworking porter, and these were simply his duties.

……

After settling the two of them in, Kitagawa Isao restored the portrait of the old master, dusted off his hands, and felt extremely happy.

After completing his daily good deed, he is now just waiting for the two of them to wake up so he can collect the reward points.

However, he was still feeling a bit bored during this waiting period.

Having come all this way, Kitagawa Isao pondered for a moment and then decided to explore the castle's secret passages to see what secrets were hidden within this castle that had cast such a long shadow over his childhood.

In fact, Kitagawa Isao was somewhat reluctant to believe that the ultimate treasure of this castle was just an empty shell and a scenic spot.

How could a family with such a distinguished reputation have only these things by now, as the family is approaching the 21st century?

No matter how valuable the castle is, it is ultimately an ancestral property of the Mamiya family that they cannot sell.

Without working capital, his descendants can't just sell the castle to make a living, can they?

Although the legendary magistrate was a progressive intellectual, being progressive does not mean being selfish or neglecting his descendants.

In addition, there's his humorous persona...

Kitagawa Isao suspected that the so-called ultimate treasure in the castle might just be a little joke played on everyone by the patriarch.

The real treasure may be hidden elsewhere.

Perhaps, the patriarch was using his humorous persona to leave a layer of warning and hints for future generations, thereby protecting what he truly wanted to safeguard...

With this in mind, Kitagawa Isao's thoughts gradually became clearer.

He traversed the secret passage he had come from, and soon arrived at a fork in the road.

At this fork in the road, one path leads to the annex, and that's where he just came from.

There was another path, but he didn't know where it would lead.

However, since he was here to explore, he might as well go all the way. In any case, with his current skills, there shouldn't be anything in this blue castle that could harm him.

Having figured this out, Kitagawa Isao immediately plunged headlong into the forked secret passage without hesitation.

After walking for a short while, he noticed what appeared to be two dark holes in the wall ahead.

This is... a peephole?

I never expected there would be such a mechanism in this blue castle; it really doesn't seem like something used for solving a puzzle...

Blinking, Kitagawa Isao quietly and slowly moved closer to him.

He discovered that the two peepholes were positioned so that an adult could see through them and observe the outside world, and the layout of the outside world looked like a person's room...

Yes, there are quite a few newspapers and survey materials on the table, and several books written in English are also on the bookshelf.

This must be the room of Noble Mamiya, who returned from studying in England.

It is estimated that Mamiya Masuyo used this mechanism to keep a close watch on her "grandson," which is how she was able to grasp the progress and movements of her "great grandson's" investigation at the first opportunity.

You wouldn't guess he's such a cunning old fox.

but……

What exactly is that thing on Noble Mamiya's desk?

Why does he look so familiar?

Kitagawa Isao, who was just about to leave, quickly turned around and stared at Mamiya Norito's desk for a while before his eyes widened.

That was... a bugging device.

Why would this be in Noble Lady Mamiya's room?

Could it be that he actually...

A thought flashed through his mind, and Kitagawa Isao quickly reached out and groped around on the wall, and he actually found a mysterious protrusion.

He pulled the protruding brick aside, and instantly, a door leading to Nobleman Mamiya's room was opened.

The secret passages of the Blue Castle were indeed well hidden; even Noble Mamiya probably never dreamed of them.

Every night while I'm fast asleep, there's a secret hidden in the closet next to me...

This is truly unsettling to think about...

……