I think this was a bit weak first episode. There are first episodes that don't reveal overly much on purpose like DtB's and then there are first episodes that just fail to reveal enough to make the story interesting. This one felt much too slow bordering boring with too much attention paid to Yuka who can't yet be important enough with the show barely launched. I'd say the story itself might have lots of potential but the director failed with this opening episode.

At least the effects were nice. Made me recall the atmosphere alterations of Oblivion in Elder Scrolls...

Nasty school nurse, though. Bloody smoking in the infirmary reserved for the sick.