The official website for the television anime of Looseboy and Iori Furuya's Talentless Nana (Munō na Nana) manga revealed on Monday the second promotional video, a key visual, and the October 4 premiere for the anime.
The anime will premiere on AT-X at 9:30 p.m,, Tokyo MX at 10:00 p.m., Sun TV at 11:30 p.m., and TV Aichi late at night at 1:05 a.m. (effectively October 5) on October 4, and will stream on d Anime Store the same day. The show will also debut on BS-Fuji on October 6 late at night at 12:00 a.m. (effectively October 7).
Additionally, a "mini anime" episode with an "academy x ingenuity x suspense story" will also stream online every week on the main anime's website and Twitter account.
The previously announced cast includes:

Hiro Shimono as Nanao Nakajima, a boy with powers and a strong sense of justice
Yūichi Nakamura as Kyōya Onodera, a boy who transfered into the school on the same day as Nana
Mai Nakahara as Michiru Inukai
Toshiki Masuda as Yōhei Shibusawa
Takuya Nakashima as Moguo Iijima
Yūki Inoue as "Moguo's henchman A"
Takeo Ōtsuka as "Moguo's henchman B"
Yoshitaka Yamaya as "Moguo's henchman C"
Hiromichi Tezuka as Seiya Kori
Yukina Tsutsumi as Kirara Habu
Yurie Kozakai as Kaori Takanashi
Atsushi Tamaru as Tsunekichi Hatadaira
Miyu Tomita as Yūka Sasaki
Aiko Ninomiya as Shinji Kazama
Tomohiro Ōno as Ryūji Ishii
Yuna Kamakura as Fūko Sorano
Atsushi Kousaka as Homeroom teacher
Koji Yusa as Jin Tachibana
Crunchyroll is publishing the manga digitally in English, and it describes the story:
An academy on an island in unnavigable waters. There, students trained tirelessly, to fight back against the enemies of humanity. The protagonist, a student newly transferred there, also sets out with the intention of eradicating all enemies of humankind. An unpredictable, intellectual suspense story of justice and evil.
Shinji Ishihira (Fairy Tail, Log Horizon, Tokyo Majin) is directing the anime at Bridge. Fumihiko Shimo (Air, Kanon, Clannad) is in charge of the series scripts. Satohiko Sano (Heybot!, Welcome to Demon School, Iruma-kun) is drawing the character designs.
Yasuharu Takanashi (Team-MAX) is composing the music at Nippon Columbia. Miyu Tomita is singing the opening theme song "Broken Sky," and Chiai Fujikawa is singing the ending theme song "Bakemono to Yobarete" (Known as a Monster).