He's in Detective Conan, and he's the mastermind behind everything.

It was definitely intentional.

Could there be a hidden secret within?

Thinking of this, Ying Sheng decided to ask directly. The old lady walked around here every morning, perhaps wanting to know what her husband had left her.

By chance, let's see if we can help her solve this problem, so she won't feel sad and disappointed in vain.

Upon hearing his words, the old lady immediately turned around and looked at him, a bright light flashing in her cloudy eyes.

"What did you figure out?!"

The old lady's voice was urgent, and she sounded much younger than before.

Ying Sheng thought to himself, "It seems this return gift is quite good." He smiled gently and pushed the old lady back to the castle.

"You have to tell me first whether the old man said anything back then."

Without hesitation, the old lady said, "He said that whoever can solve the mystery of this castle will receive his most precious treasure."

The Miyako family would tell any passerby about this and ask the brightest among them to help them decipher it. Now that Hotaru had just walked around the courtyard and figured out the problem on his own, he took the initiative to ask her, so of course she wouldn't hide it from him.

“You can see the whole courtyard from the second floor. I’ll take you there,” she added.

"No need for that trouble, I've already checked."

Ying Sheng mentally drew an 8x8 chessboard and placed the pieces he saw one by one, clearly distinguishing between black and white.

In an instant, everything became clear.

These haters, no matter how you look at them, are like a counter-clockwise arrow.

Turn, turn what?

White's pieces shouldn't be randomly placed. Try reading them out one by one according to the board order 1-8, AH.

With the pieces arranged as they are now, they do not have a positioning function, and the position of chessboard 1A cannot be determined. Therefore, there are four possibilities.

BACHFGD;

EGGHEAD;

EBCAFHG;

EHDABBD.

At a glance, the second spelling seems most likely: egg head, which sounds like "nerd".

Didn't the old lady say before that the old man often used this phrase to mock himself when he was alive?

Ying Sheng had already pushed the old lady through the castle gate. The castle was decorated in red tones and had a very high ceiling, giving it a rather ancient and dignified appearance.

The most eye-catching feature is, of course, a large portrait painting facing the entrance.

The man in the painting has a beard and is wearing a blue suit, looking quite dashing.

Ying Sheng glanced to the left and right, and saw two smaller portraits, one of a man and one of a woman, probably a couple.

That makes it quite obvious, but we still need to confirm it first.

"Is that your husband?"

Ying Sheng pointed to the portrait painting directly in front of him and asked.

"Yes, young man, have you discovered anything?"

The old woman looked at her husband's portrait, her eyes showing no trace of reminiscence, but rather a rather urgent tone.

Ying Sheng didn't take it to heart. The person had been dead for so many years; why would he think about it every day?

"Probably, I'll go try it. Please wait here for me, ma'am."

Ying Sheng released his wheelchair and walked towards the portrait. As he went up the stairs, he realized that his guess might be wrong.

Turning the painting around reveals something or a passage—that's so childish.

Such a large castle must have butlers and maids, right? Wouldn't this kind of thing be exposed immediately when cleaning?

Reaching the platform between the first and second floors, Ying Sheng raised his hand, pressed down on the lower left corner of the picture frame, and gently pushed it to one side.

With a whooshing and scraping sound, an opening appeared, leading to an upward passage with an iron staircase.

Well, it really was that naive.

Ying Sheng was speechless, feeling that this family probably didn't respect this master very much, as they hadn't thought about maintaining or repairing the painting in the past fifteen years.

He turned around and saw that the old lady was already standing up in shock and excitement.

hiss--!

A medical miracle?

This is the power of love!

"Grandma, please sit down quickly, don't hurt yourself."

Ying Sheng quickly jumped off the platform, ran to the door, and helped the old lady back into her wheelchair.

He took back his previous statement. This old lady must still care about her husband. The fact that she hadn't solved the mystery for so long was probably just because she wasn't very bright.

Or perhaps her children are disobedient and don't listen to her?

"Young man, you, you..."

The old lady's voice trembled as she spoke, and she couldn't utter a complete sentence for a long time. Ying Sheng waited quietly by her side.

But before the old lady could calm down, another voice came from upstairs.

"Who was shouting just now? Are we having guests?"

A slightly plump man in a gray-purple suit came out from upstairs and immediately saw the oil painting that had been rotated open.

"W-what's going on?!"

His tone was full of surprise as he quickly walked over there.

"Don't go over there! I spotted it first!"

The old woman suddenly shouted out loud, her voice shrill, just like the old witch in a fairy tale.

Ying Sheng almost covered his ears. He shook his head and thought that although the old lady looked frail, she was actually quite strong-willed.

"mother in law?"

At the top of the stairs, the man in the suit stopped and turned around, a hint of surprise flashing in his eyes, before tilting his head slightly to look at Ying Sheng.

"Who is this?"

Ying Sheng nodded to him in greeting, and was about to say that he was just passing by when the old lady next to him spoke first.

“I hired a detective to investigate the mystery left behind by the master. Ah Man, please step aside.”

"What! Mother-in-law, you hired a detective?!"

Mamiya Mitsuru exclaimed in shock, glancing at Hotaru, who was nodding, then at the passageway revealed beneath the portrait, and finally at the old woman whose face was full of excitement.

With a determined look, he charged straight into the passage.

"I was the first to solve the puzzle!"

"You bastard! Stop right there!"

The old lady got up again and rushed straight towards the stairs, her movements nimble and agile.

She and Mamiya Mitsuru were quite close to each other in terms of distance from the passage, and arrived at almost the same time.

"That wretched old woman!"

Mamiya Mitsuru's face contorted with rage as he unleashed a powerful punch.

"I should be the first one!"

The old lady threw the thick blanket that she was originally using to cover her knees at Mamiya Mitsuru's face and kicked it, narrowly missing the chance to kick the flustered Mamiya Mitsuru down the stairs.

Mamiya fell to the ground, and the old lady quickly crawled into the passage and climbed upwards.

"It's mine! It must be mine!"

She was still muttering to herself, as if she were going crazy.

"Damn it, don't even think about taking it all for yourself!"

Mamiya Mitsuru finally pulled off the blanket from his face, entered the passage, and began to climb upwards.

In the vast hall, only Ying Sheng remained in the blink of an eye. He glanced at the wheelchair beside him, bewildered and alone in the wind.

No, is this old lady in such good health?

I used to hear that Japan has a silver economy, which is an unhealthy social phenomenon caused by an aging population.

But if every elderly person were as agile as Mamiya, they could easily go to a construction site to carry bricks, and driving a taxi would be nothing.

And the retirement age should be delayed to at least 85.

"What's going on here? Why do I hear people arguing?"

On the other side of the second floor, another young man wearing a red silk nightgown ran out and looked at Ying Sheng at the door.

Ying Sheng pointed to the passage without any attempt to conceal it.

"The treasures left behind by the old master are probably hidden inside. Mr. Mamiya and the old lady both went inside."

"what?!"

The young man was shocked, and immediately ran downstairs in three steps at a time, and went inside without hesitation.

Ying Sheng clicked his tongue. He didn't even ask who he was. Was he in such a hurry?

He realized that these people were only after the treasure inside the castle; as for feelings, sorry, there wasn't even a tiny bit.

Never mind, it has nothing to do with him anyway.

Ying Sheng yawned and went outside to breathe in some fresh air and refresh herself.

Before they had gone two steps, another man in gardening clothes rushed over. Upon seeing Ying Sheng, he immediately asked what had just happened, as he had heard the arguing from afar.

Ying Sheng continued to speak the truth, urging him to hurry over so that he wouldn't miss out on the treasure.

However, this time the person did not leave, but only sighed with a complicated expression.