Okada is best known for her work in anohana: The Flower We Saw That Day, Mobile Suit Gundam: Iron-Blooded Orphans, Hanasaku Iroha - Blossoms for Tomorrow, AKB0048, A Lull in the Sea, The Anthem of the Heart, and Kiznaiver.
Other cast members include: Shunsuke Daito (Ouran High School Host Club), Kenta Hamano (Kamen Rider Drive), Mijika Nagai (Paradise Kiss), Yoichi Nukumizu (Lupinranger vs. Patranger), Toru Nomaguchi (Kamen Rider Drive), Yoji Tanaka (Mischievous Kiss: Love in Tokyo), Hirotaro Honda (Kamen Rider Kabuto), and Yasuko Tomita (Kimi ni Todoke).
The upcoming special is directed by Hideki Fujinami and will feature music composed by Yukari Hashimoto (March comes in like a lion). This special will air on NHK's BS Premium channel on September 1st from 10pm to 11:29pm.
[Source: Anime News Network]