The series was produced in the spring of 2024. The series was announced by TV Asahi on September 7, 2025. In an interview, Miike described seeing the 1969 live-action film adaptation of the manga as a child, saying, "It was a pioneering superhero film, and the ninja Akakage suddenly entered our lives, and it pierced my heart as entertainment. [...] Rather than forcing my own internalized Akakage on myself, or thinking that my childhood dream of 'Akakage must be like this,' I feel like I've come full circle and am now reviving Akakage and creating a film with a young cast." Describing the production, Katō said, "The filming was so intense that one day felt like a week, and I already have a feeling that the sense of accomplishment will be the greatest of any leading role I've ever played." The role of Nobunaga's page, Mori Ranmaru, was decided through an audition hosted by
LDH including participants from EXPG, a dance school run by LDH, as well as members of the dance performance group RAG POUND. The audition documentary
Golden Dream was broadcast on October 9 at 2:36 AM. The website natalie.mu stated that TV Asahi and Toei had teamed up for the new adaptation to "reinvent it as a 'hero period drama' for the
Reiwa era", and the October 2025 issue of
World Screen called the series "a modern remake" and stated that there would be 20 half-hour episodes. Discussing the modernization of this adaptation, Miike stated, "I think it's because it's not a simple story of good versus evil. It's set in the Warring States period, so the victor becomes good. And as the ninjas struggle with who they should serve and what they should accomplish, they form a team, and within that teamwork, they form friendships not unlike modern-day relationships, and they even end up talking nonsense... (laughs). I wanted to portray those aspects as well." ==Broadcast==