hahahaha.... Random Anime is fun : )
Well,what can I say? I liked it. As random as it was, there was a storyline, and you brought it out in a pretty funny way.
You have an excellent drawing style, but your walking animations need improvement. Don't worry; I'm a stickler when it comes to the fine details like that. You're better at it than a good number of first-timers, though; you get the bobbing and armswing down, but your footwork seems off. I know that was stylistic with Marin, but her father just felt... off.
Good sound effects. Marin's vocalization was clear and understandable.
the fight scene (I don't know if you can really call it that, but I guess it was) was funny. I liked your "when fighting magic" Public Service announcment trick. That just added to the randomness.
All told, an impressive first flash. Good job!