Friday, night, around the wee hours of the morning, drizzle.

Two dark shadows strolled silently in a certain direction, one in front of the other.

After a while, the figures of the two men disappeared into a small building with faint lights.

This is an independent small courtyard, surrounded by a fence several meters high, and five or six neatly arranged two-story buildings can be faintly seen within the wall, and there are several low bungalows scattered around the perimeter.

The whole yard was very dark, slightly unusually dark, so dark that there was hardly even a street lamp!

Otherwise, it's normal.

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Ten days later.

Liu Yi got up early in the morning, after yawning a few times, washed his face, he was ready to go out for morning exercise, today is Monday, and it has become his habit to get up early to run.

The unit in charge of which he is in charge is very remote, nominally subordinate to a certain public institution, but it seems that no one is in charge of it at all.

There are only 100 people in the unit, most of them are male colleagues, and there are only three or five female colleagues, who claim to be engaged in scientific research, as for what real scientific research is, only Liu Yi himself knows.

He looked out the window, but it was still light.

It's not easy for me for decades, he thought.

There was a knock on the door......

He thought he had misheard, no one had knocked on his door so early in years, but after a pause, there was another knock on the door.

"Who?"

After a long time, the voice outside the door echoed: "Me." ”

Liu Yi opened the door, and he could already tell who it was.

A slender young man stood uneasily outside the door, seemingly hesitant.

Liu Yi glanced at him coldly, he was still very strict with the young people under him.

He didn't speak.

"I see the lights in your room are on...... So ......"

Liu Yi frowned and said, "What's the matter?"

The young man muttered, "I have something I want to report......

Liu Yi couldn't help but feel angry, but he finally suppressed it, and he sneered: "It's so early in the morning, don't you have anything to do to find a smoke?"

For this young man, for some reason, he was sincerely unhappy.

"No...... No. ”

Liu Yi said angrily: "It's not weird. ”

The young man shuddered, and his voice trembled: "That...... Then I'll go first......" He turned to leave, but his steps were slow—broken steps, and he seemed to have something on his mind.

Liu Yi's eyes were still sharp, and he said loudly: "What the hell hasn't been said yet." ”

The young man let out an "ah", as if he had just remembered, and he turned around: "I've been ,...... for the past few days." Something strange—"

Liu Yi watched his tricks.

"It seems that there are suddenly fewer people in our unit!" said the young man, plucking up courage.