This was a heavily guarded building, and the small courtyard was already full of danger. This time I decided to explore other places. The mute girl hadn't returned yet, so I opened the door and walked out.
There was an elevator at the end of both sides of the corridor, and the staircase was in the middle of the corridor.
I walked to the stairs of the safe passage, opened the door, and walked in. I hesitated for a moment whether I should go up or down.
It said 'no going up'.
There was a door at the bottom. There was a red circle on the door. Inside the circle was a bright red x.
Thinking of the dim gaze I had felt in the courtyard, I decided to go down and see what wonderful things could be. The more they didn't allow it to be seen, the more beautiful it would be!