Well, If you want to read this manga you have to know that is just fine because Kumagawa the rest of characters are "meh". If you want to really enjoy this manga you must only read the chapters that appears Kumagawa the rest of the story is filler.

The main character of this manga is medaka but she only wins because the "Main Character power", you prob are thinking what is this? (https://www.google.es/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=fairy%20tail).

The other character Zenkichi hasn't got any power and just fight with his physical strength. When the enemy get stronger, you can imagine it.

Well you should read the spin off of kumagawa is funniest .