It is like someone mixed Charlotte, Shinrei Tantei Yakumo and Angel Beats! Most important point is we understand that Seiji Kishi indicates himself with success in his animes. Strong characters, strong story. A couple episodes were boring but at last you take a deep breathe and say "well that went well... no, more then well, that was perfect ending." I stopped and think some of episodes about dropping but when even though some of them are boring if you continue and finish the anime you meet with a masterpiece.