"Wouldn't it be nice to take out the spare key they hid and open the door and break in......" Ayumi looked at Mitsuhiko who opened the door with the spare key in front of her, rather worriedly.

"Wait, I'll open it," Chiba put down the milk bottle in her hand, walked to the door, and took the key from Mitsuhiko. "Take a deep breath and hold your breath."

This is the milk delivered to the house by the milk delivery staff in the early morning, but it is not properly accepted by the family. It's rare, and the most likely possibility is that the family didn't go out at all today – but it's Friday, and that's not possible.

That's why Chiba and Conan work together to ask Mitsuhiko to find the key to the house so that they have a chance to break in and see what is going on, and they will choose to use breath-holding means to prevent carbon monoxide poisoning that is likely to be non-existent, but does have a risk of occurring.

And when Qian Yu opened the door and took in the scenes in the hallway and corridor, his expression became even more solemn.

He didn't catch any of the human movements of the people living in the room - the loudest noise was the movement of the people around him, and the loudest noise in the room came from the working noise of the refrigerator that seemed to be set up not far from the door.

Immediately after, amid the surprised expressions of the others, he took a deep breath.

At the same time, the auxiliary unit gave the verdict from this deep breath.

No odor molecules were collected to prove the presence of gunsmoke, and the auxiliary unit did not detect any abnormalities in their bodies for the time being - at least a rapid lethal dose of carbon monoxide could be ruled out, and they could have gone inside to find out.

Motioning for the others to wait for him outside, Chiba walked in through the door and opened the shoe cabinet at the entrance.

After glancing at it, Qian Yu relaxed a little. "Don't worry, I think they're probably all out."

"Out?" Mitsuhiko was surprised. "But...... Chiba: How do you know? ”

"The brown shoes she wore in the Year 4 Class A photo didn't show up here, and I didn't see any male leather shoes – which is not normal for a man who wears a shirt in a family photo. Considering that there are four pairs of slippers in the shoe cabinet that are inserted into the sequence of other shoes, I think all four people in this family should have something to do and go out, right? After standing up and using the auxiliary unit to reconfirm that he had not inhaled a harmful gas that could cause an abnormality in his breathing data, Chiba turned around and looked at Mitsuhiko. Did they go out together because of something? And it's the kind of big thing — if it's not a big thing, there's no reason for the kids not to go to class with them. ”

At the same time, Qian Yu was actually paying attention to another matter, that is, whether this [Amemiya] was the [Amemiya] of the Aegis ship. And it turns out that it's obviously not a family - this one is obviously not dead, and there are only two girls, which contradicts the information provided by Hoshino Kaede that the [Amamiya] played by the [Amamiya] has at least one boy.

Thinking of this, Qian Yu breathed a sigh of relief, because this incident would definitely not be at least like the worst possibility that he had thought before, someone would come to them to settle the score.

"However, she clearly said that she was coming to us today, is it because there is a sudden emergency this morning?" Mitsuhiko had a confused expression on his face.

"If that's the case, they're probably gone before the milk comes." Conan thought with a frown. "But...... And what needs to be away for so long? ”

"Why don't we go ask her neighbors?" After thinking for a while, Qian Yu said. "Maybe they'll know something—"

The reason why Qian Yu suddenly interrupted the conversation was because he saw someone open the iron main door of the Amamiya family, and walked towards them while looking at them.

Middle-aged man with glasses and a scabbed wound at the corner of his eye.

Is it the head of the house? Qian Yu immediately began to compare his appearance, but found that this person was not the male head of the Amamiya family, and it did not exist in Qian Yu's memory.

Is it a good friend of the family? With this question, Chiba and Conan exchanged a look, and then Conan stepped forward. "Uncle, are you here to find someone?"

"Yes...... But who are you? The middle-aged man nodded, and then asked in an inquiring tone. You guys...... It's not this one, is it? ”

"At this time, shouldn't you report yourself first? After all, you're looking for someone. Qianyu "reminded" very politely.

"Ah, I'm a teacher at Teidan Elementary School near here, and I'm the mentor of Shoko Amamiya in Class A in Year 4, Fumiya Fumika." The other party looked at him with a very kind expression.

"......" Qian Yu showed a rather tangled expression - not because in the records of his auxiliary unit, there was no such teacher in Class A in the 4th year, but because he didn't know why, the other party seemed to be looking at him in a very strange way.

Subsequently, one of the battle markers of the auxiliary unit gave Chiba a possible reason - the auxiliary unit told him that the other party had spotted him, but his vision was not clear, and he did not confirm his details.

Can't see yourself clearly even after wearing glasses? He won't be...... The glasses are not enough and you want to save face, so you refuse to change them, right?

(This is a night combat module that uses the opponent's eye motion capture to confirm the opponent's observation.) For example, if the other person squints their eyes and stops down to improve clarity, it is obviously an indication that the other person is not seeing themselves clearly, but is consciously trying to see themselves. ）

"We're here for her, too, but there's no one at home – do you have any clues, teacher?" While looking at the glasses of this Hirayama Fumigo teacher, Chiba asked.

This glasses ...... The maintenance was not good, there was one screw that was even a little loose, and the teacher hadn't even noticed it yet.

"Well, it seems that their family originally planned to go to Kyushu, but originally Shoko Amamiya said that she wouldn't go with her...... Strange, could it be that for some reason she followed? Mr. Hirayama Fumigo had a puzzled expression. Forget it, if that's the case, there won't be any more investigations, just check with her parents when I get back - and you, don't just break into no one's house, go back quickly! ”

Kyushu, did not go together, in other words, the meaning of this 9-year-old or 10-year-old Shoko Amamiya is home alone. And if she left the house early in the morning and disappeared and didn't reach the school at all, it means that it is very likely......

On the way out of the gate of the Amamiya Mansion, Qianyu's face was a little gloomy.