Too late

Everyone who passed then went towards the area with the white light, and after they all entered, they felt a strange sensation, and soon after they appeared on the second floor.

Everyone was then surprised by this, and was about to comment on it, when the attendant said, "The second floor test has begun. Choose, left or right."

Two areas then appeared again, representing each side, and then everyone started making their choices again.

After a while everyone had chosen, and then the result was revealed. Of the twenty people left, four had failed the test, and sixteen had moved on, Lina being one of these sixteen people.

Those eliminated then left, and the rest of the participants continued onward. On the third floor, four people failed again. On the fourth floor, five people failed, leaving a total of seven people left.