The official website of the Sora wa Akai Kawa no Hotori (Red River) television anime revealed more cast on Thursday. The anime series adapting Chie Shinohara's adventure fantasy manga will air on NTV and BS NTV beginning in July 2026.

Cast
Queen Nakia: Aya Uchida (Tensei Kizoku no Isekai Boukenroku)
Zannanza Hattusili: Shouya Chiba (Dororo)
Ilbani: Tomoaki Maeno (Owari no Seraph)
Urhi Shalma: Kouji Yusa (Bleach)
Mattiwaza: Kousuke Toriumi (Black Clover)

Kousuke Kobayashi (Hyakuren no Haou to Seiyaku no Valkyria) is helming the anime at Tatsunoko Production. Yoriko Tomita (Nige Jouzu no Wakagimi) is handling the series composition and Kenji Fujisaki (Blood Lad) is designing the characters. Yoshihisa Hirano (Hunter x Hunter (2011)) is composing the music.

Shinohara serialized the manga in Sho-Comi from January 1995 to January 2002. Shogakukan published the 28th and final volume in July 2002. The manga has a cumulative 20 million copies of its volumes in circulation, including digital editions.

VIZ Media licensed the manga in English in February 2004 and published all 28 volumes from June 2004 to January 2010.

Source: Press Release