By the way, do we know the name of Aoi's friend at her school (the girl with the red hair we see in the first episode snatching Aoi's book from her hands)? Her and the name of her Seiyuu aren't listed on the official website.
EDIT: Never mind, her name in the credits is listed as "Aoi's Friend". I just think it's interesting that she also has red hair. Maybe she's related to Minato or something.