In preparation for tonight's test of courage, I have done my homework on the "predecessor incident" three years ago.

Although it is roughly the same as what Yohei said, it is more detailed than Yohei's, because at this time I listened to the doorman uncle. Uncle Janitor has been working here for three years, so he knows a lot about the school.

At that time,Probably like now.,The school festival has just ended.,At that time, because I had to do the aftermath of the school festival.,So the senior forgot to take his notebook home because he was busy.,Originally, it seemed like there was a classmate who accompanied the seniors to get it before.,But there's something temporary in the place where the classmate works.,So I can only let the seniors come to school alone.。 As a result, only the seniors were the only ones walking around the school that night.

"The night is terrifying." Uncle Janitor said so.

The seniors went alone, and it was very late at the time, and even the guards were ready to rest, so there was really no one in the dark school, but the seniors themselves were also the kind that were more courageous, so for that kind of environment, there was not much fear.

Except for two things, one is the long hallway leading to the vending machine at the end of the restaurant, and the second is the sound of lights flickering. For seniors who don't often come to school in the middle of the night, it's always a little strange to be so weird.

But then again, the seniors' list was already big, so I didn't care much about it.

When passing by the corridor leading to the restaurant, the seniors didn't think anything, and there were no extra lockers in the more than 30-meter-long aisle, not even a shelf.

It's a normal corridor.

However......

It was only when the seniors took their notebooks and passed by this corridor again that they began to pay attention to this corridor.

Strange to say, what is the best idea for such a straight corridor? The seniors wondered. However, when the seniors were about to turn on the lights on this corridor, they found that there were no lights on this corridor.

"Well, maybe it's a technical flaw." The senior muttered to himself. Although there are lights on the corridors on other floors, it seems that only the corridor lights on this floor have been forgotten.

"It's ridiculous." The seniors are not talking about developers, but they are saying that they have studied here for three years, and they have only found out now.

――Looking back, my predecessors have already embarked on a special path before they discovered this.

Besides, the flickering sound of the light, at first, the seniors just thought that the floor lights were broken, and the sound was made, so the seniors would press the switch of the floor lights.

It was only later that I realized that it was not a flickering sound caused by the light breaking.

Curiosity drove the seniors to find out.

Strange to say, there is no such sound on any other floor, but only on this floor is the sound of lights flickering.

Obviously, there are no lights on this floor, so why is there a flickering sound of lights?

"Could it be that the classroom is broken?"

The seniors began to talk to themselves. As I said earlier, the seniors were very bold and had a lot of curiosity. So the seniors decided to find out.

There are six classrooms in the corridor of more than 30 meters, and the only light source is the pale fluorescent light from the vending machine at the end of the corridor.

There is nothing wrong with the lighting in the first five classrooms, so it can be seen that the sound did not come from here, so the sound must have come from the innermost restaurant.

As the seniors approached the restaurant, the lights flickered louder and louder, but the restaurant was still dark.

Such a thing can already be described as supernatural.

The senior was bold enough to come to the door of the dark cooking house, and reached out and pressed the light switch on the wall.

Wow--The dazzling white light pierced the seniors couldn't open their eyes.

There was nothing wrong with the lights here, but the flickering of the lights was gone.

The restaurant is no different from usual, and there are all kinds of kitchen knives stuck in the knife slot on the cooking table as usual.

"Oh, really, it looks like I'm hallucinating." The seniors said so at the time.

Maybe it's because the atmosphere is really weird, and the backs of the seniors are already covered with sweat.

Relieved by the discharge of a large amount of water, the senior realized that his mouth was dry, so he turned around and walked towards the vending machine in front of the restaurant......

At the moment when the senior turned around, a dark shadow appeared behind the senior......

The next day, the doorman uncle found out that yesterday's senior had been killed at the door of the restaurant.

The doorman still knew about it from the mouth of the guard.

The doorman's uncle only replied to the guard's questioning: "Yesterday I took turns with another doorman to be on duty at night, but yesterday I accidentally fell asleep." ”

The guard left very politely, looking at the back of the guard leaving, the doorman uncle asked.

"Excuse me, do you have any clues now?"

The guard frowned slightly.

"There were no fingerprints left on the murder weapon, and that seat was a dead spot for the camera...... Therefore......"

That is, there is no clue at the moment.

A few days later, the doorman noticed that at some point in the night, there must be a strange noise.

It's the kind of sound you can't hear without listening carefully.

However, the doorman was not there at the time, he just thought it was the sound of the wind blowing through the glass.

Sounds that will appear every night.

"Knock knock."

It's inaudible, but it disturbs the nerves of the doorman's uncle.

When the uncle found out that it was not a window but coming from that floor......

The doorman walked down the long, unlit corridor......

Obviously, the teaching building was separated from that floor by hundreds of meters, but following the sound, the doorman uncle still found it.

"Who's there?" The doorman shouted towards the corridor with an LED light.

No response.

There is no shadow of half a person.

Just a few drops of red spots on the cream-colored floor.

"Knock knock."

It was as if my eardrum was about to be punctured. There was no one in the corridor, but the sound continued.

Maybe it's not that there is no one, but the janitor uncle can't see it from that angle.

The doorman slowly walked forward, inspecting the classrooms one by one, and when he finished checking the last cooking house, there was still nothing abnormal. And the voice was gone.

"Of course, how could there be such a stupid thing, the strange sound at the beginning is not there." The doorman laughed self-deprecatingly.

"Hahaha~" The laughter was mixed with a sense of reassurance, and the cold body instantly warmed up.

It's pure auditory hallucinations, and it seems that I care more about the tragedy than I expected. The doorman uncle thought so, and he unconsciously felt guilt, and the delusion of being killed.