Toho's official YouTube channel has started streaming a 30-second teaser trailer for Shika no Ō: Yuna to Yakusoku no Tabi / The Deer King: Yuna and the Promised Journey , the forthcoming anime feature film adaptation of Nahoko Uehashi ( Moribito series, The Beast Player )'s fantasy novel series Shika no Ō / The Deer King , to announce its new release date of September 10, 2021. The film was originally slated for September 18, 2020, but has been postponed for one year due to various circumstances. The clip also introduces the film's three main characters and their voice cast - Shinichi Tsutsumi (Katakuriko Matsudaira in Gintama live-action film) as Van, a lonely warrior who survives a mysterious disease that leads to death, Ryoma Takeuchi ( Kamen Rider Drive ) as Hohsalle, a genius doctor who searches for a cure for the disease, and Anne (Oei in Miss Hokusai ) as Sae, a skilled female warrior who is trying to track down Van. According to Anne, their voice rec