Push the door to the safe exit.

It's as dark as ink!

The triangular-like corridor has been winding upwards. Due to the loss of power, there is no end to the top at a glance, as if leading to the abyss of hell.

A strange sense of silence emerges leisurely!

There is only myself left in the whole world. There is obviously no one else in the stairwell, but it seems that there are people everywhere.

Front, back, above, below...

Faced with such a deep and narrow place, it is extremely depressing.

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