This manga differs largely from its anime adaptation. For one thing, this manga is not a mahou shoujo (magic girl) genre but centers on the bizarre and funny life of the main characters. In my opinion the manga is much more enjoyable.
The art differs from the beginning (the characters are much more deformed later which is suitable for this manga) so don't let it deter you from reading it.
This story has quite a lot of love triangles and characters with certain motives (making money, beating someone else and so on) which create hilarious situations. Much later in the story, Poppy joins the
main characters. He usually is more serious and has more common sense than others but he is constantly a source of comedy as he is put in embarrassing situations. I've never laughed as hard when I read the chapter about Seravy's secret. Seravy's threat against Poppy-kun was the funniest ever (although you need to read some of the previous chapters to get it).