Castle is one series that we joyously use as a filler, because there's very little arc plot. Whenever we finish a dramatic series, we play catch up with Castle, since we don't have to remember details from week to week. Unlike, say, Game of Thrones, where you have to pay attention to every line, or else.

Ao no Exorcist just doesn't seem to be going anywhere beyond 'misfit kid at the posh kid school' right now, which is absolutely not what I was expecting from it. I'm hoping there's more to it... please?