According to Ms. Zhang's colleagues, just before she disappeared, she called her colleagues and asked them what they wanted to buy and that she could buy them back. If a person who wants to commit suicide would still do these things?

But now Zhang Yixin is alive and dead, and everything he says is just speculation, and none of the statements are true and reliable.

As representatives of the Zhang family, we brought back Zhang Yixin's things, hoping to find some useful clues from them. But alas, I don't feel anything in any of these things.

This may be because these things are not right in themselves, and it is also possible that Zhang Yixin is not dead in the first place......

In order to investigate more useful clues, Xu Jin took us to the homestay where Zhang Yixin stayed, and the proprietress was very enthusiastic, when she had to know that we were here to inquire about the missing Chinese female tourists, she also called up the video of Zhang Yixin's stay that day to show us.

Judging from the video, Zhang Yixin was in a good state of mind that day, and asked the boss about what local restaurants were delicious. After that, she put down her luggage and walked out of the B&B alone......

It was about 10 o'clock that night, Zhang Yixin came back from the face, and said hello to the proprietress when she entered the door, but she seemed to be a little tired. Then she went back to her room and didn't come out all night.

The next morning, after Zhang Yixin had breakfast in the B&B, she asked the proprietress for a postcard at the front desk, and then watched her lie on the counter and write a few words on the postcard, and then turned around and went out with the postcard.

Since then, Zhang Yixin has never returned to this homestay, and her luggage has been left in the room where she stayed before......

It's a pity that because the video is too unclear, I can't see what Zhang Yixin wrote on the postcard at all? Who is it mailed to? According to the information provided by Zhang's father, in Zhang Yixin's social circle, in addition to her parents, she is relatively close to her colleagues in the company.

However, I asked Xu Jin to contact Zhang Yixin's family, and they all said that they had not received a postcard from Japan from their daughter. But if it's for a colleague, then it won't just send a postcard?

So Uncle Li and I both think that this postcard is the only clue now. So we asked the hostess about how many mailboxes there were nearby. After that, the proprietress was very enthusiastic to draw a simple map for us, which marked the specific locations of the two post boxes in the vicinity.

According to the hostess's map, we quickly found the two mailboxes she said, and then I asked Ding Yi to write down the number of the mailbox, hoping to find out if one of the two mailboxes was sent back to China on the day Zhang Yixin sent the postcard.

It's a pity that this is not China after all, and we don't know anyone here except Xu Jin. And he, a Chinese student, is at most a translator for us, or helps us contact Zhang Yixin's family.

If we want to do something through the Japanese police investigation, it is unlikely that we will do it ourselves. In the end, Uncle Li contacted Sister Bai and asked her if she had any friends who could help here.

Who is Sister Bai? She made friends all over the world, and she quickly introduced a friend of her who worked at the Consulate General in Sapporo to us. When we told him about the situation here, Sister Bai's friend immediately said that he knew about the incident and had been actively contacting the Japanese police, urging them to solve the case as soon as possible.

As soon as Uncle Li heard that this was an official word, he didn't say politely to him, and said bluntly, we have clues that the police don't have, but I don't know if the Japanese police will follow the clues we said.

Sister Bai's friend carefully inquired about the clues we said, and told us to go back to the hotel and wait first, and he would help contact the Japanese police.

Unexpectedly, Sister Bai's friend's efficiency was quite fast, and the Japanese police found us in the hotel that afternoon. According to the clues we provided, they quickly investigated all the postcards sent in these two mailboxes on the day Zhang Yixin mailed the postcards. But unfortunately, none of them were sent back to China.

This is strange, could it be that this postcard has always been on Zhang Yixin's body and has not been mailed out? But it can be clearly seen in the video that the location of the lines she wrote should be the address and zip code?

So with this question in mind, a few of us returned to the homestay where Zhang Yixin stayed again, and then followed the route she might have taken that day. Soon we passed by the two mailboxes that the proprietress had said.

At this time, many Japanese female students wearing school uniforms came to meet them, not to mention how they looked, just looking at their school uniforms felt particularly fresh and beautiful. On the other hand, the school uniforms of our domestic middle schools are more than comfortable, but they are not beautiful enough......

Just when I was admiring these Japanese middle school students who can only be seen in Japanese movies and TV dramas, I found that they all stuffed letters into the mailbox. Later, Xu Jinyi inquired and found out that these middle school students were sending letters to their pen pals.

I thought it was funny when I heard it, what age did you write letters to your pen pals, as long as there is a mobile phone signal, even if your pen pal is on Mars, it is also a contact anytime and anywhere!

But Xu Jin told me that this is an activity initiated by her school, which is intended to allow students to temporarily put down their electronic products, return to the original era of innocence, and write down their thoughts about their friends with paper and pen.

I laughed a few times and said, "That's how different Little Japan's thinking is!"

Suddenly, a flash of inspiration flashed in my mind, did you say that Zhang Yixin's postcard was not sent back to China, but somewhere in Japan?

Thinking of this, we quickly returned to Zhang Yixin's homestay, and then asked the proprietress for a postcard that was exactly the same as Zhang Yixin, turned over the back and took a look, and found that the scenery behind it was a famous canal in Otaru.

So that afternoon, we took this postcard to the police station again, hoping that the police here could find out if there was a postcard exactly the same as my hand in the two mailboxes on the day Zhang Yixin took the postcard.

This time, the police officer in charge of the case took us directly to the post office in Otaru and found the postman in charge of the two mailboxes. We learned from this postman that there are not many people in Japan who are willing to write letters, so the most important thing in the mailbox every day is postcards sent to all over the world.