Tang Ze took a sip of black tea and then questioned: "But if this is the case, would tetrodotoxin be prepared in advance?"

"Well... I'm afraid happiness is just a mask she wears to deal with the other party."

After a moment's silence, Buta Hiroaki said, "After all, as I said before, different people will subconsciously show different sides of themselves when facing different people and things.

As for the poison, it was probably prepared in advance for this moment. After all, it is easy to get it through the Internet now.

To be honest, it is understandable that we should prepare in advance. After all, it is normal to hesitate before making a decision. "

"But to be honest, I just can't agree with the idea of ​​suicide." Tang Ze put the teacup on the coffee table and shook his head slightly.

"Is there something that makes you feel wrong?" After hearing what Tang Ze said, Hiroaki Buta also put down his teacup and asked with concern.

Judging from his expression, it was as if he was really concerned about the follow-up investigation after learning that the student's death was not suicide.

"For the sake of black tea, I'm only saying this here."

Tang Ze's voice gradually lowered as he spoke. "I suspect Miss Iimori Saki may be having an 'illicit affair' with someone, that is, an affair with a married person."

"You mean cheating? No way."

At this point, Buta Hiroaki leaned back in his chair and shook his head, saying, "She wouldn't be the type to do something like this."

"That's really interesting." Tang Ze suddenly showed an interested look, "Didn't you say that the idea that "she won't commit suicide" is meaningless?

After all, humans are complex creatures. On what basis did you base your judgment that Miss Iimori Saki didn't put on a mask to mislead you? "

"This is just my judgment based on the little I've gotten to know her from our daily interactions," said Hiroaki Buda, waving his hand. "This is just my subjective judgment, and it's not really a reference."

"So that's the difference between scientific 'academic judgment' and personal 'subjective judgment'." Tang Ze nodded in sudden realization.

"That's right, that's a very good summary." Buda Hiroaki said as he added black tea to his cup. "By the way, why do you have such an idea?"

"In fact, Miss Iimori Saki has a notebook at home that records daily expenses in detail. It's called a household account book."

Gao Mu began to talk about the discovery that Tang Ze had told him in the car before: "This record records every penny she spent in detail, even the money for buying a piece of candy is carefully recorded."

"That's really her style." After hearing Takagi's words, Hiroaki Buta couldn't help but sigh.

"In fact, this is where we discovered some clues."

Tang Ze looked around cautiously. The attitude of keeping a secret made Buda Hiroaki lean forward subconsciously, and he was completely immersed in the tense atmosphere.

"When we checked the bills, we found that Ms. Iimori Saki went to the same supermarket every night after get off work to buy ingredients and then cooked her own meals."

"Then what?"

Buda Hiroaki seemed to realize that he was being a little too concerned. He picked up his tea and regained his objective attitude. "Isn't it true that people who live alone are all like this?"

"That's the problem."

Tang Ze stared at Buda Hiroaki in front of him with sharp eyes and slowly said, "Although he cooks every week, he basically never goes to the supermarket to buy ingredients on Tuesdays and Thursdays. Where do you think she will eat?!"

"Well..." Buda Hiroaki took a sip of black tea and said, "Maybe only she knows..."

Although the other party's behavior was the same as usual, Tang Ze, who had been prepared and had been paying attention to him, still noticed some subtle unnaturalness in the other party.

First, the right hand holding the black tea paused for a moment after hearing Tang Ze's words, and then drank the black tea as if without any reaction.

Secondly, the other party frowned slightly every day, and the solemnity in his eyes showed that after hearing the news, he was not as calm as he appeared.

All I can say is that the other party was too calm, so he was able to control his mind when he heard the news.

But Tang Ze did not learn the micro-expressions in vain. Especially when he was unintentional, his dynamic nerve reflexes could have clearly seen the other party's fleeting real reaction.

"I think in this case, it can only be eaten outside, what do you think, Professor?"

Tang Ze's observation only happened in a moment and did not affect their conversation at all. After hearing Hiroaki Beda's perfunctory words, Takagi continued to watch Hiroaki Beda and discussed the issue with him seriously.

"Not only that, she didn't pay for it herself. After all, there is no record of the relevant expenditure in the account book."

While secretly praising Takagi's tacit cooperation, Tang Ze continued to analyze: "In this situation, someone inviting Miss Iimori Saki to dinner may become the only option."

"That means Tuesday and Thursday are most likely date days." Takagi followed closely and agreed, concluding the reasoning.

"However, when we investigated, we found no evidence of her dating a man. Even the apartment manager, who was close to her, 'Tokyo Mom,' was unaware of the matter."

Tang Ze said seriously, "That is to say, she is dating without telling anyone around her!

It takes a lot of effort to hide a relationship from others, and we think it is natural for Ms. Iimori Saki to have an abnormal relationship."

My dear, there is more to this chapter. Please click on the next page to continue reading. It will be even more exciting later!