After Myojin Kogi and Hotaka Kazuharu checked the clothes on the corpse, they confirmed that they were the same as those worn by Nishizono Sho when he was in junior high school.

In addition, after examining the body, it was discovered that there were wounds on the skull caused by a shovel.

In addition, a shovel, the murder weapon, was found next to the skeleton, with the words "Yu Zang" engraved on it.

According to the other two people, all four of them had this type of shovel, and in order to distinguish their shovels, they all engraved their names on the handles.

In other words, this shovel is unique. Even without checking the fingerprints on the shovel, these two words alone are enough to convict Mikura Heiji.

"What else do you have to deny now?"

With tears in her eyes, Natsuko Nishizono angrily asked Heiji Mizoro, "Why did you kill my brother?!"

"That guy developed a new variety of corn that can produce several times more ethanol than the current one. I really want that secret..."

Mikura Heiji knew he couldn't deny it, so he finally confessed everything: "That's a great invention that can replace oil.

Even if the research ultimately fails, the impact of ethanol could still revolutionize the industry.

When he was a student, I had been secretly supporting his research, so he was able to stay in school.

But after it successfully developed a new variety, it became very indifferent, and my research results remained stagnant.

It even reached the point where I was at the end of my rope and was about to be fired by the company.

I explained my situation to him and even knelt down to beg him, but he only gave me some sunflower seeds.

That's why I killed him and buried the seeds with him!

But I didn't expect you to find the body because of these sunflowers."

"Do you think those sunflowers might be the secret to the new variety?"

After listening to Mizoheiji's words, Tang Ze said, "I saw a photo of him and his brother under a sea of ​​sunflowers in the photo that Miss Xiazi saw yesterday.

Now after listening to what you said before, as someone who knows a little about biology, I suddenly thought of a simple knowledge point.

I remember that when corn fields are fallow, they will be planted with sunflowers, right?

If you use it as green manure, it will make the corn grow more abundant and full.

This is because compared to those chemical fertilizers, sunflowers can increase the beneficial microorganisms in the soil, making the environment more fertile.

Considering how he gave you sunflower seeds, it's clear that Xiyuansheng's research on extracting more ethanol from corn is based on using sunflowers as green manure."

“!!”

Hearing what Tang Ze said, Mizoheiji suddenly woke up, as if he had just woken up from a dream at this moment.

In order to thank him for taking care of him during college, his good friend Xiyuan Sheng gave him the secret of green manure as a thank you gift.

But he was forced into a desperate situation by the company. He was thinking about his own affairs and his reason was blinded by hatred and jealousy. He didn't even see such a simple thing.

"What have I done..." Mizore Heiji broke down and cried, holding his head. Of course, no matter how strong the regret in his heart was, there was no way to make up for it.

Not only did he kill his friend who was willing to reveal the secret to him, but he also had to pay the price for his actions.

Everyone saw Mikura Heiji's collapse, but no one sympathized with him.

As for Natsuko Nishizono, she did not show any mercy to the regretful Heiji Mizono, but chose to ignore him.

No matter how much he regrets at this moment, her brother will never come back. Mizo Heiji is the murderer of his brother, and for this reason alone, she will never forgive him.

What's more, he did not forget that if Detective Tang Ze had not been present yesterday, he might have been in danger when he went up the mountain this time.

So this kind of guy doesn't deserve any sympathy at all!

Mikura Heiji was quickly taken away by the local criminals. After he came down the mountain, he would be charged with the double crimes of murder and attempted murder.

Of course, this was no longer Tang Ze's business. Before he and Natsuko Nishizono took Nishizono Noboru's body down the mountain, the other party had already notified his parents.

After going down the mountain, the Xiyuan family expressed their gratitude to Tang Ze, and Tang Ze left alone.

After all, they found Xiyuan Sheng's body, so naturally a funeral would be held next. As an outsider, it would be inconvenient for him to interfere.

So he returned directly to Tokyo.

After returning home, Tang Ze recounted the entire incident to Ayako.

"I didn't expect going up the mountain this time would be so dangerous. Fortunately you didn't let me go with you, otherwise it would have been dangerous."

After hearing the whole story of the case, Ayako couldn't help but feel a little scared.

"Indeed, it's not difficult to find the person this time. It's just that the murderer's murderous intentions in the dark need to be guarded against the most."

Tang Ze nodded in agreement. Even the systematic evaluation of this case said so.

On the way back to Tokyo, he had already checked the reward for this case.

He Disappeared

Completion: Perfect

[Congratulations to the host for obtaining the item skill designation card]

Evaluation: In this case, your caution allowed you to avoid the murderer's plot, and prevent the murderer from being taken away in advance, and you also found the place where the body was buried.

You avoided the danger of your companions, and somehow you gained a lot of favor from fate.

Regarding the rewards for side quests, the completion level can generally be achieved at the perfect level, but this level only rewards skills and no additional rewards.

Although Tang Ze failed to prevent the case this time, it seemed that because the case was quite dangerous, he caught the murderer in advance and he also received the original level of reward.

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