This series is beautifully animated, very charmful, surprisingly good for everyone to watch (doesn't take the viewer for an idiot like Dora 4 exemple), has a lot of funny and creative visual gags, and most importantly has insanely loveable characters (including the main three, the literal entirety of the first year class, most of the teachers, and even the heroes rivals are very entertaining when onscreen). I watched it as a kid, re-watched it recently (available for free on YouTube) and I love it even more than in the past. It's a shame that it only got one season and that I can't find the movie, I would have watched 10 more seasons of this stuff. One of Xilam's best work in my humble opinion. Give it a watch, it's great.