At TBS Anime Festa, PSP novel game "Okamikakushi" was announced to get a TV anime adaptation.

Okamikakushi game official website

The game was released on August 20th.

Source: game official webiste
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Updated on Oct 26th
Director: Takamoto Norihiro ("07-Ghost", "Ufo Princess Valkyrie 2: Juunigatsu no Yasoukyoku")
Series Organizer: Machida Toko ("Lucky ☆ Star")
Character Designer & General Graphic Director: Watanabe Atsuko ("Valkyria Chronicles")
Production Studio: AIC

Cast
Kuzumi Hiroshi: Kobayashi, Yu
Kushinada Nemuru: Ise Mariya
Tsumuhana Isuzu: Kato Emiri
Asagiri Kaname: Fuchigami Mai (newface)
Kuzumi Mana: Fujita Saki
Mana Kaori: Goto Yuko

Source: official website