Monday, early morning, cloudy. Monday, early morning, cloudy.

There was no sun in the sky, not a single white cloud in sight, and the entire sky was dim.

It rained heavily last night and there is still water on the ground.

Outside a building at a construction site.

The sound of police sirens echoed in my ears, and the forensic personnel were busy collecting evidence back and forth.

The flash lights flickered from time to time in the dark environment, and the corpses on the ground made the atmosphere seem extremely cold.

At this moment, Tang Ze was wearing foot covers and a white windbreaker-type raincoat. He was standing next to the body and examining the body with Takagi.

After the incident at the gym, Tang Ze and Ayako continued their date and shopping, and Ayako even picked out a suit for Tang Ze.

In the evening, they went out to eat some delicious food and watched a movie before they went their separate ways.

And as soon as I got to work on Monday...haha, the case came up.

The body lying on the ground was a man in his thirties. His clothes did not look very good, and there were several obvious tears on both sides of his pants.

Tang Ze slightly opened the tear and took a look, and found that although it was a little winding, it was still a straight line overall. It seemed more like the damage was caused by a sharp blade than by the pants.

Although the wound under the clothes was not very clear, Tang Ze and others still needed to go back and wait for the autopsy report, but in addition, there were also straight wounds on the palms of the other party's hands, which proved this fact.

Although these wounds looked serious, they were not fatal. The real cause of death was falling from the rooftop of the old building next door.

"So, the deceased was chased here by someone holding a knife or something sharp, and then fell down..."

When he reached the rooftop, Takagi backed away with his palms open as if to defend himself, imitating the appearance of a deceased person being attacked, while retreating closer to the edge of the rooftop.

Looking down from the rooftop, one could just see the deceased lying on the ground below.

"But there's no way to detect footprints." Tang Ze said helplessly as he looked at the rain-soaked ground on the rooftop.

Although there were many forensic personnel collecting evidence on the rooftop at this moment, the rain yesterday made it much more difficult to collect evidence, and it was impossible to confirm the footprints to prove whether the deceased had been to the rooftop.

After pulling the body back, Tang Ze and others quickly returned to the Metropolitan Police Department and began to check the items on the body while waiting for the autopsy information.

"There's not a penny in the deceased's wallet." Gao Mu speculated after checking the wallet: "Was it a robbery? If so, it's really difficult to deal with. Random robberies are too fluid."

"Don't be ungrateful. At least you left something for us."

Tang Ze held up the only remaining National Health Insurance card in his wallet and said, "With proof of identity, at least we won't be completely confused."

Tomoyuki Otsuga, 36 years old, lives at 6-40 Kaitachikawa, Beika-cho.

Apart from the insurance card to prove his identity, he only had three keys left on him.

However, once the key is sent for identification, it will take time to determine where it belongs.

After the autopsy, it was found that in addition to the palms, the deceased also had knife wounds on his legs. The current judgment is that he was chased and hacked by someone, and fell from the roof of the building when he was desperate.

After the autopsy, the autopsy analysis of the food in the stomach became Tang Ze's focus.

Salmon, beef, wakame (edible seaweed).

Apples, wheat flour (bread), milk fat (milk).

There was so much food in the deceased's stomach and it didn't make sense!!

"Is this a guessing game?" Takagi scratched his head. "I really can't imagine what kind of dishes these combinations can create."

Takagi is single now and buys all his meals and doesn't know how to cook, while Karasawa doesn't know much about Japanese cuisine.

So he took the information and specifically asked a few older female accounting professionals, but they still had no idea what kind of dishes these foods could be combined into.

These were the foods the victim had eaten within two hours before his death.

After some inquiries without any results, Tang Ze and the others simply put the question aside and prepared to go to the address on the insurance card to check.

However, after arriving at the address and finding the landlord to explain his purpose, he received an unexpected answer from him.

Tomoyuki Otsuga moved out eleven months ago, and the house he lives in now finally found a new tenant two days ago.

According to the landlord, Tomoyuki Otsuga said that he suddenly got a job with housing, so he moved away.

"What should we do now? The deceased's residence has become a useless clue." Takagi asked from the driver's seat. "It's been almost a year. I'm afraid Otsuga Tomoyuki has no connection with this place anymore."

"Then let's go visit Otsuga Tomoyuki's family." said Karasawa.

"This is the only way. I hope his family can provide some information." Takagi started the car and came to the Otsu family's mansion based on previous investigations.

There was no need to mention the social etiquette of knocking on the door, showing ID, and stating the purpose of the visit. After entering the house, the two of them started asking questions directly.

The person in charge of receiving the two people was Otsuga Tomoyuki's brother, Otsuga.

But the two did not get much information from each other, because it had been a year since Otsuga Tomoyuki called them.

"My younger brother had been a temporary employee before. About a year ago, he called and said he had finally become a full-time employee of the company."

"Then do you know which company he became a full-time employee at?" Takagi asked while taking notes.

"He changed jobs frequently, and he didn't mention it on the phone before, so I didn't know..." Otsugai sighed, "But I really didn't expect him to die... It was really too sudden..."

"You haven't been in touch since then?"

"He didn't buy a mobile phone, and his home phone number couldn't be reached. Even the place he moved to had changed."

"So, you know about your brother's move?" Tang Ze asked, "When did you find out about your brother's move?"

"After talking on the phone, we met again after that..."

However, this meeting was not as pleasant as expected, because Otsuga Tomoyuki, who became a regular employee on the phone, was fired by the company and lost his job again.

Even the application for unemployment insurance was not smooth, as the applicant's length of service and labor insurance premiums did not meet the application requirements.

The two met because Otsuga Tomoyuki wanted to ask his brother Otsuga for money.

Otsugai scolded his brother, saying that he must not have worked hard, and bluntly said that taking care of his hospitalized mother and his own family was already difficult enough.

The two parted on bad terms, and Otsugai never saw his brother again.