This manga is simply awasome.... It switches between drama, comedy and action randomly but never leaving originality aside.
A theory of mine is that the knights are the ones sealing the evil that wants to destroy the world and owner of the biscuit hammer and the golems are aiming for the knights for that reason. So we have the mages, minions of the evil princess creating golems to kill all the knights in order to bring their master back and the knight protecting the vessel that holds the same evil...