TV-MA, for those who wonder. It hasn't aired on TV anywhere but Japan, as far as I know. But you CAN buy it in a store, if you have a time machine. It was around four years ago that it was sold in stores, I believe. I'm pretty sure you can buy it online, however.EDIT: The Fanservice in the OP/ED are more artisitc rather than what it may seem. The pictures in the OP are re-drwn classical pictures, made with the main character of the show.