Nogizaka Haruka no Himitsu: Purezza
English name: Haruka Nogizaka's Secret: Purezza
Genres: Comedy, Romance, Ecchi
Type: TV, Episodes: 12
Aired: Oct 6, 2009 to Dec 22, 2009
Studio: Diomedéa
Source: Light novel
Rating: PG-13 - Teens 13 or older
Synopsis:
Haruka's manga and anime hobby is still concealed by her dear friend Yuuto, but Yuuto's other female friend starts to feel affection and attraction towards him, so a feelings war begins among their circle of friends. Meanwhile Yuuto tries to make Haruka happy doing what she likes the most: drawing manga, watching anime, and attending special anime events.

(Source: ANN)