Mononoke the Movie: Chapter III - The Curse of the Serpent (2026)

Mononoke the Movie: Chapter III - The Curse of the Serpent is a 2026 Japanese animated fantasy mystery and horror film, and the concluding chapter of the three-part Mononoke movie trilogy. Directed by Tomoaki Koshida with Kenji Nakamura serving as chief director, the film returns to Edo Castle's inner palace, where the Medicine Seller senses that the disturbances he encountered in the previous chapters are far from over. A series of ominous events leads him toward the terrifying Serpent God and a secret connected to the origins of the Ooku.

Hiroshi Kamiya returns as the Medicine Seller, joined by Atsumi Tanezaki as Sachiko, Miyu Irino as Tenshi, Kenjiro Tsuda as Hokuto Mizorogi and Yoshiko Sakakibara as Suikoin. The voice cast also includes Tomoyo Kurosawa, Yoko Hikasa, Haruka Tomatsu, Kaji Yuki, Jun Fukuyama, Miyuki Sawashiro and Yukana. Like the earlier films, the movie combines supernatural mystery with highly stylized animation, using the Medicine Seller's search for the Form, Truth and Reason of a mononoke as the foundation of its story.

• The film was released in Japan on May 29, 2026, and runs for approximately 87 minutes.
• It is the final installment of a trilogy that began with Mononoke the Movie: The Phantom in the Rain in 2024 and continued with The Ashes of Rage in 2025.
• Kenji Nakamura, creator and director of the original Mononoke television series, serves as chief director, while Tomoaki Koshida directs the third chapter.
• The film was produced and distributed by Twin Engine, with animation production credited to Studio Kafka and EOTA.
• The trilogy's first two films won Audience Awards in the feature animation category at the Fantasia International Film Festival, reflecting the series' strong international fan reception.