The official site of the TV anime adaptation of otome game Norn9: Norn+Nonet revealed the cast and staff for the upcoming series. The game was developed by Otomate and released by Idea Factory in 2013 for PSP/PS Vita consoles.

Cast
Koharu: Ayumi Fujimura (Ao no Exorcist)
Kakeru Yuiga: Yuuki Kaji (Nanatsu no Taizai)
Senri Ichinose: Hiro Shimono (Diamond no Ace)
Masamune Toya: Takuya Satou (Cardfight Vanguard)
Mikoto Kuga: Ayahi Takagaki (Akatsuki no Yona)
Natsuhiko Azuma: Daisuke Ono (Working!!!)
Sakuya Nijo: Mitsuki Saiga (Genshiken)
Itsuki Kagami: Kouji Yusa (Arcana Famiglia)
Nanami Shiranui: Asami Seto (Chihayafuru)
Akito Syukuri: Noriaki Sugiyama (Fate Stay Night: Unlimited Blade Works (TV))
Ron Muroboshi: Tomokazu Sugita (Gintama)
Heishi Otomaru: Hiroyuki Yoshino (Sket Dance)

Staff
Original Story: Otomate
Original Story Illustrations: Teita
Director: Takao Abo
Assistant Director: Tetsuo Ichimura
Series Composition: Natsuko Takahashi
Character Design, Chief Animation Director: Yukari Takeuchi
Art Director: Akira Suzuki
Screen Design: Toshiki Nishi
Future Design: shirakaba
Mechanical Design, Prop Design: Takeshi Takakura
Layout: Masatsugu Arakawa
Sound Director: Jin Aketagawa
Director of Photography: Yukiyo Kajiwara
3DCG Director: Yuushi Koshida
Editor: Hitomi Sudo
Producer: Mitsutoshi Ogura
Animation Producer: Muneki Ogasawara
Animation Production: Kinema Citrus x Orange

Synopsis
The story takes place a little in the future. Guided by one particular song, young elementary school student Suzuhara Sorata, from the Heisei Era, is warped through a time skip to an unfamiliar place that looks much like the towns from the Meiji or Taishou period from his textbooks. In this world, he meets three young ladies and nine young men and joins them on a journey aboard the mysterious Norn ship, a giant globe that floats in midair.

Source: Official site