On July 30, it was revealed that Ryunosuke Kamiki and Yūsuke Iseya were cast as Seta Sōjirō and Shinomori Aoshi.
Pada 30 Juli, diumumkan bahwa Ryunosuke Kamiki dan Yūsuke Iseya akan berperan sebagai Seta Sōjirō dan Shinomori Aoshi.