sorry mate, quick question, what is the average age of a student?

Also is this guy okay?

[img]http://orig06.deviantart.net/8e27/f/2013/227/a/4/anime_boy_by_hiphop427-d6ic6un.jpg[/img]

His noble arm is a Pata sword, and his ability is to blink ten metres. His eyes and clothes glow when he is about to blink and it looks like he is digitally fading and reappearing in and out of existence.