The straight one.

Una knew there was nothing for her behind the door, which showed a “4/3” upon seeing her, so she went down the corridor, avoiding nasty accessories and death traps.

When the corridor was left behind, there was a round room which had a hemisphere-shaped ceiling. Climbing plants decorated it and, more notably, she could see sky with clouds through it. They were floating above her slowly, and she stood, hypnotized by them.

“Who were we back on Earth? Our memory was reduced to tiny shreds.”

“Whoever I was before, I won’t come back unchanged.”

Una finally lowered her glance and saw a door. “Exit” — the little screen above it said. Another one to the right of the first had another message, written in bright red numbers:

“4/0”

“What does that mean? I gotta get rid of everything to get past?” — she asked herself, making a step towards the room’s center. As soon as the girl noticed a feeding apparatus that she did not mind using, she heard a