"...Officer, I, I would like to provide a clue that may be useful to you in your investigation."

After hearing this, Fujiwara Yu did not rush upstairs, but turned around and carefully looked at the BBQ restaurant waiter named Naito Tatsuji, who was also one of the suspects in the case.

The dry and yellow hair is not caused by hair damage due to frequent hair dyeing, but is caused by the body's lack of zinc, iron, copper and other elements. He is either extremely picky about food or his family conditions are average, resulting in malnutrition.

The dark circles under his eyes were very thick and his whole face looked haggard. If he didn't already know that he was 27 years old, Fujiwara Yu would really think that the young man in front of him was already on the road to his 40s.

He looked down and noticed that the back of Naito Tatsuji's left hand was wrapped in a bandage. He couldn't help but ask:

"Mr. Naito, is your hand injured?"

"Ah?" Naito Tatsushi subconsciously looked at his left hand and said with a wry smile, "It's just a small wound. I accidentally hurt it while cleaning."

"Even minor wounds need to be treated properly. Disinfection, keeping them away from water, and changing the gauze frequently are necessary." Ever since Fujiwara Yu recovered his memories of his past life, he has been acting as a doctor and will subconsciously develop an occupational disease when encountering such situations.

Naito Tatsushi smiled and nodded. He quietly put his hands behind his back and said:

"Officer, I actually saw Yoshioka-san and the store manager arguing yesterday, and it was quite intense."

"What is it about?"

"It's a salary issue. Officer, even though our business is booming, the manager has been withholding our wages for three months. Yoshioka-san was in a hurry to use the money, so he argued with the manager and even..."

Fujiwara Yuu noticed that Naito Tatsuji seemed to be hesitant to speak, so he spoke to comfort him:

"Feel free to provide any clues. I will handle it anonymously for you."

"Yoshioka even threatened to kill the store manager," Naito Tatsushi said, then frowned and explained, "Actually, Yoshioka is usually a very nice person. He might have said that because he needed the money urgently."

After hearing this, Fujiwara Yu felt that Naito Tatsuji was a rather amazing person. He had obviously come here to offer clues, but he ended up speaking well of the person about whom the information was leaked. Haha, it was quite interesting.

"Thank you for the clue, Mr. Naito. I will consider it myself."

"You're welcome, Officer. This is what I'm supposed to do."

Just as Fujiwara Yu was about to go upstairs, Akihara Kenji, who had just escorted the female students from the police academy back to school, pushed the door open. When he saw Fujiwara, he immediately asked about the progress of the case. After learning that the victim's mouth was stuffed with small steel balls, his inference was consistent with Fujiwara's.

They all agreed that the murderer stuffed the small steel balls into his mouth as a way to vent his anger. Judging from the clues provided by Naito Tatsuji, the murderer was most likely killed because of a financial dispute.

"I think we should ask the police to investigate whether the three suspects have been desperate for money recently." Akihara Kenji paused, gesturing as he spoke, "Think about it, if you're desperate for money and find out your boss isn't paying you because he's gambled it all away, wouldn't it be possible that you'd get emotionally agitated and kill someone?"

"Well, actually, I have a hypothesis in mind, but it still needs evidence to confirm." Fujiwara Yu's gaze fell on someone, then he reached out and patted Akihara's shoulder, saying calmly, "Let's go back to the scene and take a look. I haven't done much research, so there must be some clues I've missed."

"Scene inspections are my forte. Let me see what Fujiwara-chan missed~"

"I just didn't make it in time, not because I missed it."

"Okay, you just missed it, I understand~"

"...Why are you coaxing me like a child?"

The two of them walked upstairs chatting and laughing. After arriving at the crime scene, they quickly calmed down and seriously joined the large team investigating the scene.

Before Fujiwara Yuu could join, he received a call from Furuya Rei. Based on the clues provided by Furuya, he learned that the victim, Hiroki Tezuka, was a regular at pachinko, spending five days a week there. Because he often cursed after losing money, the staff had a very deep impression of him.

"By the way, during the investigation, the pachinko boss also revealed a piece of information to me."

"What information?"

"The pachinko owner lent the victim 1 million yen three months ago. He'd asked for it back numerous times, but he hadn't repaid it. But then, just two weeks ago, he suddenly returned the money, including the principal and interest. I think we can start our investigation with this money."

"Okay, I'll have Officer Komatsu investigate the victim's bank statements. I'll hang up now. Don't stay there any longer. Come back."

"OK."

After hanging up the phone, Fujiwara Yuu shared the news with everyone present. Matsuda Jinpei, who was squatting on the ground conducting a carpet search, reached out and pulled out the passbook buried under the carpet, raised an eyebrow and analyzed:

"Fuji, didn't you say before that the victim withheld wages from his employees? I think he invested the money he withheld in a small steel ball, then borrowed money from others to make up for the debt. Now he can't come up with the money. This passbook is the best evidence."

The passbook records all of Hiroki Tezuka's deposits. As the manager of a popular BBQ restaurant, his deposits do not exceed five figures.

"Tsk tsk, gambling really is harmful." Yin Dahang couldn't help but shake his head. You know, with such popularity in a barbecue restaurant, the monthly turnover is very optimistic. How could it be so bad that the savings are only in the five digits?

"It's okay to play occasionally, but nothing can be linked to the word 'addiction', so I suggest people with poor self-control not to touch this kind of thing." Matsuda Jinpei spread his hands to express his opinion. He has always looked down on gamblers who are addicted to gambling and squander their fortunes.

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