Hau~ Omochikaeri~!, a blog by Micchi and Nemuiwanko about massively multiplayer online games, accuse that Miu! World plagiarise characters of Ragnarok Online, World of Warcraft, Maple Story and possibly other games in their online game Aurore Blade. The blog includes two changing pictures of the alleged original and alleged copycat characters.
"Finally, they [IGG, the company that made an English version of Miu! World's online game version] recently changed in the the class sprites and removed some of the monster sprites from the game, due to possible fear of future lawsuits from Gravity, Blizzard and other game makers. It is interesting to note, however, the Chinese version is still the original copycat version."
Read and see here.