Nearly three decades after the last animated outing for Osamu Tezuka’s groundbreaking manga Ribbon no Kishi (known to English readers as Princess Knight), the franchise is returning with a bold new film. THE RIBBON HERO has released its final trailer and announced additional voice cast members ahead of its global premiere on Netflix on August 8, 2026. The project marks the first anime adaptation of Tezuka’s work in 27 years, and the final trailer offers the most complete look yet at how a team led by JUJUTSU KAISEN veteran Yuki Igarashi is reimagining one of manga’s most historically significant heroines for a modern audience.
A Historic Manga Returns: The Final Trailer and Netflix Launch
The new two-minute trailer, released alongside an English dub version, showcases the film’s animation style, sets, and key action sequences. It confirms that THE RIBBON HERO will stream exclusively on Netflix worldwide on August 8, 2026. The trailer follows a teaser that earlier introduced the theme song “Reborn” by the group Girls Archives. With this final promotional push, the production studio TWIN ENGINE and animation house OUTLINE are signaling that the film is complete and ready for its long-awaited debut.
For fans of Tezuka’s original work, the trailer is a visual testament to how the story has been updated while retaining the core identity of its protagonist. The original 1953 manga, often credited as one of the first shōjo manga, introduced Sapphire, a princess born with both male and female hearts who must conceal her true gender to protect her kingdom. The new film reimagines this premise against a backdrop of loss and exile, leaning into contemporary themes of identity, resilience, and found family.
What Is ‘The Ribbon Hero’? A Quick Primer
THE RIBBON HERO is a feature-length anime film based on Osamu Tezuka’s manga Ribbon no Kishi (Princess Knight). The manga, which first ran in 1953, is considered a landmark work for its progressive exploration of gender and its influence on the shōjo genre. The story follows Sapphire, a princess who fights as a masked hero. The new film updates the setting: Sapphire has lost her homeland of Silverland to a calamity called Nergal and wanders in despair until she arrives in Goldland. After finding kindness there, Nergal threatens the new land, and Sapphire vows to fight again. The film is directed by Yuki Igarashi, best known for directing the ending animation of JUJUTSU KAISEN Season 1 and contributing to Star Wars: Visions. It is produced by TWIN ENGINE with animation by OUTLINE, and will premiere globally on Netflix on August 8, 2026.
From 1953 to 2026: The Legacy of ‘Princess Knight’ and Its Return After 27 Years
Osamu Tezuka, often called the “God of Manga,” produced an enormous body of work, but Ribbon no Kishi holds a special place in his canon. It is widely regarded as the first shōjo manga to feature a cross-dressing heroine, and it broke new ground by centering a female character who defies rigid gender roles. The series received a black-and-white television anime adaptation from 1967 to 1968, which introduced Sapphire to a wider audience. The most recent animated project before THE RIBBON HERO was a short film shown in 1999, meaning the franchise has been dormant in animation for over a quarter century.
The decision to revive the property now speaks to several industry trends. Netflix has become a major platform for anime globally, and the streaming giant has actively sought out both original productions and revivals of classic IP. Tezuka’s works, including Astro Boy and Black Jack, have seen renewed interest in recent years, with modern reinterpretations that appeal to nostalgic fans and new viewers alike. THE RIBBON HERO benefits from this cultural moment, as audiences are increasingly receptive to stories about gender fluidity and empowerment. The new film is not a direct adaptation of the original manga but rather a reimagining that uses the core concept—a princess with both male and female hearts—as a foundation for an original story about loss, migration, and heroism.
The Plot of ‘THE RIBBON HERO’: A New Beginning for Sapphire
The official synopsis released with the final trailer paints a clearer picture of the film’s narrative direction. Sapphire is the princess of Silverland, a kingdom that no longer exists after being destroyed by the calamity known as “Nergal.” She wanders in despair until she reaches Goldland, where she begins to find a glimmer of hope through the kindness of its people. But Nergal appears again, threatening to destroy this new home as well. Sapphire resolves to fight, declaring, “I won’t lose anything ever again. And I won’t let anyone else lose anything either.” The story follows her as she ties her ribbon and takes up her sword to defy fate.
This synopsis departs significantly from the original manga, which was set in a fantastical European-style kingdom and involved a love triangle and a quest to restore Sapphire’s rightful throne. The new film instead adopts a post-disaster framing, with Sapphire as a refugee who must find the strength to protect a community that has accepted her. The shift reflects a more modern narrative structure—one that emphasizes trauma, recovery, and chosen family over traditional royal inheritance. The name “Nergal” (borrowed from a Mesopotamian deity associated with war and plague) suggests a cosmic or supernatural threat, giving the story a stakes-raising antagonist that fits the epic action tone shown in the trailer.
Key Details About the Setting and Characters
The film reportedly takes place in two main locations: the lost Silverland and the new refuge of Goldland. While the original manga featured a cast of supporting characters including a villainous prince and a fairy, the new film introduces a fresh ensemble. The confirmed characters from the voice cast include Zirco, Velvet, Pine, Rock, Hecate, Chorogy, Chick, and Tack. These names suggest original creations rather than direct translations from Tezuka’s story, indicating that the film is building its own mythology while retaining Sapphire as the central figure.
Final Trailer, Voice Cast, and Key Staff: Who Is Bringing Sapphire to Life
The final trailer confirmed several new voice actors joining the previously announced cast. The full voice cast for the Japanese version is as follows:
- Saya (Lalande) as Sapphire
- Seiran Kobayashi as Zirco
- Koki Uchiyama as Velvet
- Mayumi Shintani as Pine
- Yoshimasa Hosoya as Rock
- Mito Tsukino as Hecate
- Yusuke Tezuka as Chorogy
- Lunlun as Chick
- Debidebi Debiru as Tack
Saya, also known as Lalande, is a Vocaloid and voice actress who voices the lead role. The inclusion of Yusuke Tezuka—a relative of Osamu Tezuka and himself a manga artist and writer—adds a layer of authenticity and family connection to the project. The English dub trailer shown alongside the Japanese version indicates that Netflix is preparing a full localized release for global audiences.
The Director and Production Team Behind the Film
Yuki Igarashi directs the film, marking his first feature-length directorial project. Igarashi’s previous work includes serving as director and animator for the ending sequence of JUJUTSU KAISEN Season 1, which was widely praised for its fluid choreography and emotional impact. He also contributed to the Star Wars: Visions anthology series, working on the short “The Ninth Jedi.” His stylistic background in action choreography and emotional storytelling aligns well with the demands of a superhero-style princess narrative.
The main staff includes script associate Komura Junko, with original character design by Kei Mochizuki and character design cooperation by Mai Yoneyama. Animation character design is handled by Issei Arakaki, known for his work on Vivy -Fluorite Eye’s Song- and Fate/Grand Order adaptations. Artistic direction comes from Cedric Herole with art direction by Masanobu Nomura. Notably, the design of the antagonist Nergal is by okama, a well-known illustrator and character designer. The music is composed by Satoru Kosaki and Ryuichi Takada of MONACA, a studio known for projects such as NieR: Automata and PERSONA 5 musical contributions. Sound direction is handled by Keiichiro Miyoshi under TOHOKUSHINSHA FILM CORPORATION, while TWIN ENGINE produces and OUTLINE handles animation production.
Key Visual, Theme Song, and What the Final Trailer Reveals
The key visual released alongside the trailer depicts Sapphire standing with her ribbon flowing and sword drawn, against a backdrop that blends ruined architecture with vibrant natural elements. It emphasizes both the action-oriented direction and the emotional core of the story. The theme song “Reborn” by Girls Archives was previously introduced in an earlier trailer; the final trailer uses the song prominently, underscoring the theme of renewal that runs through the film.
The English dub version of the trailer, available on Netflix’s official YouTube channel, confirms that the studio is treating this as a major global release. Given that the original Princess Knight manga was translated into English and gained a dedicated Western audience in the 1990s and early 2000s, the English dub will likely aim to capture both nostalgia and accessibility for new viewers.
What the 27-Year Gap and Modern Production Mean for Tezuka’s Legacy
The revival of Ribbon no Kishi after 27 years reflects a broader industry trend of revisiting classic shōjo and shōnen properties with modern production values and updated storytelling. Tezuka’s works in particular have seen a renaissance: Astro Boy remains a cultural icon, Black Jack received new anime adaptations, and his lesser-known titles are being rediscovered by streaming audiences. THE RIBBON HERO stands out because it directly tackles themes of gender and identity that Tezuka was pioneering in the 1950s, themes that resonate even more strongly today.
From a production standpoint, the involvement of TWIN ENGINE—a studio known for high-profile works such as The Heike Story and Chainsaw Man—and OUTLINE, a newer studio but staffed with experienced animators, suggests that the film has been given a budget and schedule to compete with top-tier theatrical releases. The choice of Yuki Igarashi as director, a relatively young talent with a strong visual style, signals that the producers are aiming for a fresh, kinetic energy rather than a reverent period piece.
The decision to set the story in a post-apocalyptic kingdom rather than a traditional fairy-tale kingdom may also be a strategic choice to appeal to global audiences familiar with action-fantasy anime. The original manga’s plot was deeply tied to 1950s Japanese gender roles and occasional comedic elements; the new film appears to strip away much of the lightheartedness in favor of a more serious, character-driven drama. Whether this approach will satisfy long-time fans of the original or alienate them remains to be seen, but the final trailer suggests a polished and emotionally weighty production.
When and Where to Watch ‘THE RIBBON HERO’
The film premieres globally on Netflix on August 8, 2026, in both Japanese with subtitles and in an English-dubbed version. Given Netflix’s track record of simultaneous worldwide releases, viewers in most regions should be able to stream the film on that date. The earlier trailers and key visual have been promoted through Netflix’s anime channels, indicating broad marketing support. The film is produced by TWIN ENGINE and animated by OUTLINE, with music by MONACA, and is licensed under ©Twin Engine.
For those unfamiliar with Tezuka’s original work, the film is expected to be a standalone story that does not require prior knowledge of the manga or the 1960s anime. The synopsis and trailers present a self-contained narrative with a clear beginning, middle, and end, though the film may leave room for continuation if it proves successful.
The Broader Significance: A New Chapter for Classic Shōjo on Streaming
THE RIBBON HERO arrives at a time when streaming platforms are increasingly investing in anime adaptations of older properties. Netflix alone has produced or co-produced new versions of Gundam, Bastard!!, and Urusei Yatsura, among others. However, Princess Knight occupies a unique niche: it is one of the first manga to feature a gender-nonconforming protagonist, and its return could pave the way for more thoughtful adaptations of classic shōjo titles that deal with identity. The film’s treatment of Sapphire as a refugee and a masked hero also aligns with contemporary superhero narratives, potentially bridging the gap between Western superhero media and Japanese anime.
The final trailer, with its polished animation, dramatic orchestral score, and glimpses of fluid combat, suggests that the creative team understands the weight of the legacy they are handling. The inclusion of Tezuka’s relative in the voice cast further underscores the familial and cultural significance of the project. For fans of the original manga, the 27-year wait has been long, but if the final trailer is any indication, the film is shaping up to be a worthy and modernized tribute to one of manga’s most important heroines. The ribbon is tied, the sword is drawn, and on August 8, 2026, Sapphire will finally ride again for a new generation.
