Split up

Once the voice said they could enter into the hole, all the student here dashed towards the hole farther in the distance.

Since there were fifty ultivehicles here and in each came eight to nine students. Then that meant there were more than four hundred students here for the competition.

When they got to where the hole was, they didn't jump in as hesitation shone in their eyes. Their hesitations surfaced because they saw how the hole looked like.

Although large, it was dark and it gave a feeling that it was very deep. Then they thought how they would land without breaking their leg bones. They couldn't fly and land softly to the ground. So, this made them hesitant to jump in.

"Jump in. Don't be scared. Since you can't fly, a force will help you land gently to the bottom"

Since they were assured by the voice, they jumped into it.