the Japanese DVD release only contains 24 episodes, while the internet say there are 25 eps, I could not find any information about that supposedly existing ep 25.
that series was first broadcasted on US tv, using a different airing order than the japanese tv broadcast.
the korean broadcast order is also different from the US or Japanese order.
the japanese DVD version is a complete overhaul of the original broadcasted version, with reworked 3D, changed storyboard, cut/changed scenes, etc
in other words, it's a total mess...