Haruka Nogizaka's Secret: Purezza is a tV series anime that premiered in fall 2009, produced by diomedéa.

About the production: the story comes from a light novel, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are comedy, ecchi and romance, with themes such as School, Heterosexual, Otaku Culture and Butler.

On AniList, Haruka Nogizaka's Secret: Purezza has an average score of 68%, a good score, and appears on 12,966 users' lists.

The franchise continues in or follows from: Nogizaka Haruka no Himitsu and Nogizaka Haruka no Himitsu: Finale♪.

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: Anime News Network)

Official synopsis from AniList.