You also could have stated, they they would need to talk to Nezu about the transfer. He is the Principal, not you.
So Nezu would possibly be able to make something happen for them.
That is understandable, but its a system between schools.
It could be possible for Ketsubutsu to set something up with UA to the point where they could transfer.
Have you bothered asking them?
Getting their side of the story at all?
I know mari wouldn't actually flood the school, they admire UA too much and have a lot of friends there to actually do it.
Okay?
Mari has many friends that Go to UA, have you asked them if they have friends that go to UA? Because if they were visiting a friend, they could have gotten lost in the building, since it is rather elaborate, and decided to mess around.
But that makes no sense, there is a loop hole there.
For them to be able to flood the school theyre still going to have to be on UA ground to do so.
UA campus is very large, and takes up a lot of space, so if they were in the fencing of the school, thats still breaking in.