I couldn't have finished it if they wouldn't have justified the boredom with the intro sentence explaining that this is just a story about 3 girls and nothing special. To be frank, this series is absolutely boring. I do have a broad taste in humor an also often laugh about things most people wouldn't even take as a joke - in short - i don't hesistate when there's something remotely funny. But in this show the only real funny thing was the running gag about the drama tv show the three sisters are following. "sensei!" ... "ninomya-kun!" ... "sensei!"
That got me giggle every now and then, but the rest was plain mediocre. At some point i was hoping that they would turn it into a love triangle rom-com. Then at least something interesting would be going on.
But, i don't wanna bash this show. In all fairness they at least apologize before each episode so i can't be too hard on them. It was alright, but do take the intro sentence seriously! They mean it. It is ordinary and may be overlooked without regrets.
