The countdown has begun for the final chapter of the Mononoke film trilogy. Twin Engine has dropped a new trailer for Mononoke the Movie: Chapter 3 – The Serpent God, giving fans their best look yet at the trilogy’s ending. The video reveals the May 29, 2026 release date for Japanese theaters and shows the Medicine Seller facing his most dangerous enemy yet inside the Ooku palace.
The third movie will solve the “greatest secret” hidden inside the women’s quarters of Edo Castle. The trailer shows Hiroshi Kamiya returning as the mysterious Medicine Seller, who must find the truth behind the Serpent God before it destroys everyone. The new footage also confirms the theme song “No Epilogue” performed by Aina the End, who sang for the first two movies as well.
New Trailer Shows Medicine Seller’s Final Fight Inside the Ooku
The second trailer runs over 90 seconds and opens with the Medicine Seller demanding answers from the palace residents. His line “Tell me! It’s the crucial thing…the true identity of the Serpent God!” sets the tone for the intense final chapter. The trailer then shows the Emperor confessing “I too was a lie,” while Sachiko (voiced by Atsumi Tanezaki), the highest-ranking woman in the Ooku, asks “Didn’t you desire a child?” These lines point to deep family secrets that have been buried for 150 years.
The visuals show the Medicine Seller in a shocking new form. The main poster released in April 2026 shows him standing in a white space with patterns on his face and colorful kimono emanating light. This image hints at his possible fate by the end of the movie.
The trailer also reveals a childhood connection between Tenshi and Mizorogi Hokuto. They appear as young children making a secret promise to each other. Years later, Tenshi quietly tells Hokuto, “You, both then and now, were simply telling the truth.”
Complete Cast List for Final Mononoke Movie Chapter
The third movie brings back familiar voices and adds several new cast members:
- Hiroshi Kamiya as the Medicine Seller
- Atsumi Tanezaki as Sachiko
- Miyu Irino as Tenshi
- Kenjiro Tsuda as Hokuto Mizorogi
- Daisuke Hosomi as Sakashita
- Miyuki Sawashiro as the Third Empress
- Yukana as Tenkyoku (deeply involved in Ooku’s secrets)
- Eiji Takemoto as Saku Mizorogi (ancestor of Hokuto)
- Fumi Hirano as Tokiwai
- Mariko Honda as Kawa
Yukana previously voiced characters in the first two movies. For the final chapter, she plays Tenkyoku, the wet nurse of the third emperor from 150 years ago who held more power than the principal wife. Eiji Takemoto, who voiced the demon-slaying sword in the TV series, now plays Saku Mizorogi. His comment teased fans: “An ancestor!? Someone from long, long ago!? So how is he related to Hokuto?”
Special Event Brings Cast Together Weeks Before Release
On May 16, 2026, a special screening event took place in Tokyo. Hiroshi Kamiya, Daisuke Hosomi, and director Kenji Nakamura appeared wearing kimonos. Kamiya joked about his sloping shoulders making him look good in traditional Japanese clothes.
Hosomi shared his experience working with Kamiya: “It was a huge help to be able to act while receiving Kamiya-san’s acting. As we progressed through the first and second chapters, the relationship between Kamiya-san and me also came into play in the acting… If it weren’t for Kamiya-san, Sakashita wouldn’t have been possible.”
Director Nakamura pointed to the action scenes as a major highlight. He explained that in a small room, the Medicine Seller “jumps and spins in a cool way.” When drawing the storyboards, he remembered thinking, “Wow!”
Kamiya described the difference in his approach for the final movie. In the first two chapters, he was “trying to find a pace so as not to give my all while acting.” For The Serpent God, he feels “the feeling of finding the final destination” and knowing that his purpose will be fulfilled.
Previous Chapters Set the Stage for Final Confrontation
The Mononoke movie trilogy began with Chapter 1: Karakasa (The Umbrella) , which released in July 2024. The story focused on new maids forced to give up their individuality inside the Ooku. Chapter 2: Hinezumi (The Fire Rat) came out in March 2025 and dealt with family conflicts over who would become the next emperor.
The third movie, Hebigami (The Serpent God) , centers on Sachiko, the highest-ranking woman in the Ooku. The promotional video released on May 19, 2026, shows how each chapter explored different horrors. Chapter 1 looked at group pressure and losing personal identity. Chapter 2 showed the pain of women caught between fighting families. Chapter 3 will bring all these storylines together for the final reveal.
The original Mononoke TV anime first aired in 2007 on Fuji TV’s Noitamina block. The show came from the same team that made the popular “Bakeneko” episode of Ayakashi in 2006. The movie trilogy was created to celebrate the 15th anniversary of the original series.
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Release Details for Japan and Global Streaming
Mononoke the Movie: Chapter 3 – The Serpent God opens in Japanese theaters on May 29, 2026.
For global audiences, the movie will stream worldwide after the Japanese theatrical run ends. No exact streaming date has been announced yet. The first two movies became available on international platforms several months after their Japanese releases.
The movie runs as the final part of the trilogy. Director Kenji Nakamura, who worked on the original TV series, returns to direct. Tomoaki Koshida serves as director alongside Nakamura. The screenplay comes from Shin Hachikaku, with character design by Koko Nagata.
Aina the End returns to perform the theme song “No Epilogue.” She explained her thinking behind the song: “The third chapter has a finale feel to it, but the lives of everyone in Mononoke are not over! I don’t want them to end! I created the song ‘No Epilogue’ with that feeling in mind.”
The production team includes Studio Kafka and EOTA, with distribution by Twin Engine.
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