The highly anticipated Harmony of Mille-Feuille (also known as Utagoe wa Mille-Feuille) anime adaptation is set to debut on July 17, 2025, and new details regarding its vocal cast continue to emerge, promising an enriched auditory experience for viewers. The official website for the music-themed project has recently unveiled three additional voice actors joining the anime’s roster: Iori Saeki, Mayumi Shintani, and Kaori Nazuka. These newly announced talents are making their first appearances within the project, not having been part of its earlier audio drama releases, marking a significant expansion to the series’ vocal ensemble.
The Melodic Premise of Harmony of Mille-Feuille
Harmony of Mille-Feuille is an original mixed-media project, conceived by Pony Canyon and Takuya Yamanaka, that first launched in April 2022. The project centers on themes of a cappella music, the journey of high school girls, and the complexities of youth. The narrative follows Uta Komaki, a first-year high school student who, despite her passion for singing, struggles with a timid nature. Her attempt to join a light music club in pursuit of a normal high school experience falters due to her shyness. In her moments of despair, Uta discovers the world of a cappella, a form of music created solely by the human voice. Through this discovery, she encounters a diverse group of girls whose imperfect lives are woven together by their harmonized voices, illustrating that even without conventional “shining,” a profound youth can still be found. This compelling premise has already led to various manifestations, including voice drama stories, music videos showcasing the voice actresses attempting a cappella, and documentary videos detailing their lessons.
New Voices Joining the Chorus
The inclusion of Iori Saeki, Mayumi Shintani, and Kaori Nazuka introduces fresh talent to the Harmony of Mille-Feuille anime. Their roles within the narrative are keenly anticipated, especially given that they are new additions who did not participate in the project’s prior audio drama releases. Voice actors are instrumental in breathing life into anime characters, shaping their personalities and emotional depth through their vocal performances. The addition of these experienced professionals suggests a diverse range of character portrayals and vocal styles, further enhancing the a cappella theme of the series.
The Established Ensemble: Main Characters and Their Voices
Prior to this latest announcement, the core cast of Harmony of Mille-Feuille had already been revealed, featuring a talented group of voice actresses bringing the main a cappella club members to life:
- Mirai Ayase as Uta Komaki, the lead vocal.
- Yūko Natsuyoshi as Musubu Mayumori, the first chorus.
- Kanoko Sudō as Airi Kojō, the second chorus.
- Misato Matsuoka as Rei “Reirei” Konoe, the third chorus.
- Miharu Hanai as Urū “Ururu” Miyazaki, responsible for voice percussion.
- Haruka Aikawa as Yako “Kuma-chan” Kumai, the bass vocalist.
This primary group forms the heart of the a cappella club, and their performances are crucial to conveying the series’ central theme of harmonized voices. Furthermore, the project also introduced the cast for the “Parabola” group, including Asaka as Zoe Delaunay, KIYOZO as Karin Minami, Moeka Koizumi as Mizuki Fujishiro, Nao Tōyama as Kikka Sengoku, and Yoshino Aoyama as Reira Tamaki, expanding the vocal universe of the anime.
The Creative Minds Behind the Harmony
The production of Harmony of Mille-Feuille is overseen by a seasoned team, ensuring a high-quality adaptation of the mixed-media project:
- Executive Director: Takuya Satō, known for his work on series like Strawberry Marshmallow and Steins;Gate.
- Series Director: Kiyoto Nakajima.
- Series Screenwriter and Scriptwriter: Takuya Yamanaka, who is also one of the original creators of the project.
- Character Designers: Chisato Kikunaga and Hitomi Kaiho.
- Art Director: Kazuhiro Arai.
- Music Composer: Shun Narita.
- Animation Production: Jumondo.
Pony Canyon, a key player in the original concept, is also responsible for the music production of the anime. The dedication of such a comprehensive team underscores the commitment to translating the intricate vocal performances and emotional depth of the a cappella theme into an engaging animated series.
Premiere and Global Reach
The Harmony of Mille-Feuille anime is officially scheduled to premiere on July 17, 2025, in Japan. It will air on TOKYO MX at 9:25 p.m. JST, with new episodes releasing on Thursdays. BS Fuji will also carry the series, with new episodes available on Fridays at 24:30 JST (effectively Saturday at 12:30 a.m.). For international audiences, Aniplus-Asia has licensed the series and will provide a simulcast, ensuring that fans in Southeast Asia can experience the anime as it airs. This broad distribution reflects the growing global interest in Japanese animation and the unique appeal of Harmony of Mille-Feuille‘s musical narrative.
The Enduring Vision of “Harmony of Mille-Feuille”
The Harmony of Mille-Feuille project continues to build anticipation with its layered approach to storytelling, encompassing not just the anime but also its ongoing music and drama components. The central message that “even without shining, it’s still youth” resonates through the portrayal of high school girls finding connection and identity through a cappella. The introduction of Iori Saeki, Mayumi Shintani, and Kaori Nazuka to the anime cast further enriches this already vibrant world, promising new vocal harmonies and character dynamics that will undoubtedly captivate audiences when the series premieres. As the debut approaches, fans worldwide await the opportunity to immerse themselves in this unique tale of music, friendship, and self-discovery.
