So far the biggest one I've had so far was the nine month timeskip. Mugi, Yuu, and Tsukasa were finally getting a good relationship going then out of the blue Yuu and Tsukasa's mom comes and the result is Yuu and Tsukasa leaving Mugi. Then a nine month timeskip occurs. There was soo much potential in that area that left me feeling insane. For instance Mugi's character having to cope with the fact that he was alone again, another thing would have been Tsukasa's reaction when she learned they weren't going to live with Mugi anymore, how all the friends of Yuu felt when they learned she left. Just sooo much could have been put in there and really increased how good the story is. Instead we get a nine month timeskip and by the looks of things NOTHING changed. Thats right, not a damn thing seemed to have been affected by that sudden turn of events!