"Mr. Oguri, I'm really sorry to bother you this time."

When Sakaki Makoto and his companions walked out of Farm No. 12, Ishida Domoto kept thanking them, his face full of gratitude:

"If it weren't for you, we would still be kept in the dark."

"Mr. Ishida is too polite. We are not of much help."

“No, no…”

Ishida Domoto got in the car and took the initiative to say:

"Let's go back."

"Number."

Hiroki, confused, followed behind and got into the car and returned to Ishida's house.

When he got off the car, he happened to see a little child with a schoolbag on his back, walking slowly across the road beside the field, kicking a stone and walking towards them.

"Junya!"

When he saw the other person, Ishida Domoto immediately shouted.

Ishida Junya, who was carrying a schoolbag, looked up and glanced at him. Without saying a word, he walked into the entrance, took off his shoes, and went upstairs alone without even saying hello.

Ishida Domoto seemed to have long been accustomed to his nephew's attitude. He bent down to put the shoes neatly in place, then smiled and invited Sakaki Makoto and others to come in and sit down.

It is only 4 o'clock in the afternoon. Maori Kogoro and his family are still enjoying the scenery of Tajima Village. They have no intention of returning to Kobe for the time being, so Sakaki Makoto and his friends are not in a hurry.

Anyway, there are still three hours before Kidd starts the action. If I rush back now, I will just be anxious. It is better to sit for a while.

"What happened to them?"

After they sat down, the Ishida Domoto brothers left for a while to help move some things. Taking this opportunity, Hiroki asked:

"Why did you suddenly stop talking about the farm?"

“Because it’s not necessary.”

"It's unnecessary? Why is it unnecessary? A calf can be sold for so much money, don't they feel sorry for it at all?"

"Which do you think is more important, a few calves or a family?"

"family."

Hiroki blurted out:

"There is no comparison between the two!"

"So they don't mention it, because in the eyes of the Ishida Domoto brothers, family is far more important than a few cows."

Are the Ishida Domoto brothers stupid?

No, they are not stupid but very smart, otherwise they would not have been able to develop such a large farm.

As a detective, Sakaki Makoto found crucial evidence. At the same time, the Ishida Domoto brothers who were present also understood the methods used by the criminal.

Simple, even childish.

There is no challenge at all.

"You mean... the criminal in this case is one of their own family members?"

Hiroki opened his eyes wide and thought about it, but he could only think of one person.

Junya Ishida!

The nephew of the Ishida Domoto brothers!

"What method did he use?"

After knowing the criminal's identity, what Hiroki could not understand the most was the method of committing the crime.

"Didn't you see the farmland on both sides on the way here?"

Sakaki Makoto drank a sip of hot tea and said calmly:

"This shows that Tajima Village grows its own crops."

"so what?"

“Sorghum seedlings.”

Miss Miyano said:

"Sorghum seedlings contain a large amount of cyanogenic glycosides. When cattle ingest cyanogenic glycosides, esterase and rumen fermentation will produce toxic hydrocyanic acid, causing symptoms of poisoning."

"Hydrocyanide poisoning in cattle is usually acute and can cause a variety of symptoms including rapid heartbeat, suffocation, cardiac arrest, and death can occur within 30 minutes."

"ah!"

Hiroki was startled:

"But I heard that sorghum seedlings are edible!"

"In theory, heating can inactivate glycosidase, preventing it from converting cyanogenic glycosides into toxic hydrocyanic acid, but that is only theoretical. In the case of small amounts, the cyanogenic glycosides contained in the heated sorghum seedlings are not enough to cause death. However, the sorghum seedlings eaten by the calf were raw and not processed at all, so poisoning occurred."

"So that's how it is..."

Hiroki nodded, but he had another question:

"How did you determine that the criminals fed sorghum seedlings to the cows? I have never seen sorghum in the village!"

"Mr. Ishida once invited us to taste his homemade beer. Have you forgotten?"

Conan said:

"Sorghum can be used to brew beer, but because it contains too many impurities, it cannot be sold at a high price. However, in some places, sorghum beer is a very popular product!"

“Among the crops grown in Tajima Village, there must be sorghum!”

"yes...."

Sakaki Makoto sighed:

"How could the Ishida Domoto brothers, who have been raising and dealing with Wagyu beef for years, not know that sorghum seedlings are toxic to cattle?"

"So when they saw the window was not locked, they immediately knew the identity of the criminal."

"There are some things we shouldn't care about, and we don't need to care about them."

Just then, Ishida Domoto came to the living room with his nephew, smiling, but both of them had red and swollen eyes.

"I'm sorry to trouble you!"

Ishida Junya bowed to Sakaki Makoto and the others.

"Go back and do your homework."

"I understand, uncle."

Ishida Domoto sat down opposite Sakaki Makoto and the others and said sincerely:

"Thank you so much. If it weren't for your help, I would still be in the dark."

"Are all the problems solved?"

"Solved."

Ishida Domoto smiled and said:

"My brother and I were too focused on the farm and ignored Runye's thoughts. I thought he was just a child with a simple mind, but I forgot that he was sensitive. He kept some things in his heart for a long time, and it was inevitable that he would make some extreme actions to attract our attention. If I could pay more attention to him, maybe I could notice his abnormality at the first time."

"I'm afraid this is why my sister insisted on leaving home."

"After this incident, I've figured it out. It doesn't matter whether the business is big or small. It's enough for us to live on now. It's better to free up some time to take better care of the family."

Makoto Sakaki and Miss Miyano looked at each other, smiled without saying anything, finished their tea, and stood up to say goodbye.

Ishida Domoto accompanied them all the way to the station and gave them many local specialties.

This time they finally don't have to suffer the torture of the tractor, after all...

The old farmer was still waiting nearby for them to return.

"Uncle!"

While waiting for the bus, Kogoro Mori and others finished visiting Tajima Village and were also planning to return to Kobe, so they met each other.

"Where have you been, little brat?"

"You went out to play..."

Conan didn't dare to look the uncle in the eye. After all, he had just arrived in Tajima Village when he disappeared and didn't reappear until the afternoon.

"Oh, by the way, big brother Sakaki Makoto wants to treat you guys to barbecue!"

Conan lifted up the heavy bag in his arms:

"This is authentic Kobe beef, five pounds!"

"What?!"