Who did it?

Kairen had to find Alan. 

That was the very first thing he wanted to do the next morning. He wanted to search for that man as soon as possible.

Kairen didn't know how and where he was supposed to find him though.

Yesterday after the monsters attacked, Kairen left him behind in the teleportation center to go and fight the other monsters.

The rescue group arrived a little bit after Kairen left the center and moved the people to a safe place.

The teleportation center was greatly damaged in the attack so it was closed today and there was no way to find the rescue group's members and ask them about Alan.

In addition to that, one whole day had passed since the attack. Obviously, Alan wouldn't have waited for him all day in the teleportation center, so Kairen had to find where he was now.

That was what he wanted to do. 

But he could only want it, not actually do anything.

Why?