Smiles can be seen on the faces of all five of the students who came to participate in the tournament. This was because of the points that they just earned without doing anything.
When they were stopped by the group of ten students before returning to the start area, they thought they were in a bind. There were only five, while the other party was a group of ten. It was supposed to be a tough battle, but the battle ended before they could think of starting it.
The reason behind that was their leader, Aaron. He summoned his undead army and ended the battle within a minute.
After that, they didn't have any trouble returning to the starting area.
The reason there was a smile on their faces was that beacuse, Aaron took away all the tokens from the defeated ten. He didn't keep all for himself, though. He distributed some to them, keeping some for himself.
When they refused, "Don't worry, I have too many and that would be troublesome. So, I am sharing with you", he said.