The sound was dull and short.
If it was man-made, it means that person did not have enough conditions to accumulate power.
It's very likely that they wanted to make a sound in a short time to attract attention.
Besides Misari Ito and those other people, the only other person in the house was him, who had come in to use the restroom.
Presumably, his conversation with Misari Ito earlier had caught that person's attention.
That's why that person wanted to attract his attention in this way.
"Is he imprisoned...?"
After piecing together all the discoveries and clues, this possibility popped into Guangyou's mind:
Someone is being held captive in this house.
The sound came from above, but Guangyou did not find any stairs leading to the third floor in the house.
The only possibility is that the house must have an attic.
Recalling the scene when he first arrived here, Guangyou suddenly remembered that there was a window on the second floor.
"The attic? That's a bit tricky."
When he realized that someone was being held captive in the attic, Kōyū frowned.
Things are a bit tricky...
The attic is not only a concealed location, but it also offers only two points of attack:
The outside window and the hidden door to the attic.
Of course, you could blow it open with a bomb, but even if you had grenades and explosives, Guangyou would never use that method.
You should know that people are being imprisoned in the attic.
If they actually threw grenades and explosives inside, not only would they be able to take care of the guards, but the people being imprisoned would also be doomed.
What's the point of saving him then?
...
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