The upcoming television anime adaptation of the Harmony of Mille-Feuille (also known as Utagoe wa Mille-Feuille) music project has recently announced the addition of Iori Saeki, Mayumi Shintani, and Kaori Nazuka to its voice cast. These new cast members will portray significant characters, further expanding the ensemble for the highly anticipated series. The anime is slated to premiere on July 17, 2025, on Tokyo MX and BS Fuji, with Aniplus-Asia also simulcasting the series.
Key Voice Cast Additions and Their Roles
The newly announced voice actors bring their talents to pivotal roles within the Harmony of Mille-Feuille narrative:
Iori Saeki as Sayaka Iguchi
Iori Saeki, known for her roles in various anime, will voice Sayaka Iguchi. Sayaka is characterized as a member of the light music club, contributing to the band as a vocalist and guitarist. Her character is expected to play a notable part in the musical journey of the series’ protagonists.
Mayumi Shintani as Uta’s Mother
Veteran voice actress Mayumi Shintani has been cast as Uta’s mother. Uta’s mother runs a restaurant specializing in Western dishes, suggesting a potential influence on the protagonist’s life or a backdrop for character interactions. Shintani’s extensive experience adds significant depth to the cast.
Kaori Nazuka as Musubu’s Mother
Kaori Nazuka takes on the role of Musubu’s mother. Musubu’s mother is described as a noted musician who performs both in Japan and internationally. This role hints at a musical legacy or a source of inspiration, or perhaps challenge, for Musubu, one of the main characters. Nazuka is a highly experienced voice actor, further bolstering the production’s talent pool.
Anime Overview and Production Details
Harmony of Mille-Feuille is an anime adaptation of a music project that initially launched in April 2022. The project revolves around themes of “a cappella,” “high school girls,” and “complexes,” exploring the coming-of-age story of six high school girls through their a cappella music endeavors. The narrative follows Uta Komaki, a first-year high school student who, despite her love for singing, struggles with timidity. After failing to join the light music club, she discovers a cappella music and connects with a group of girls whose harmonized voices weave their imperfect youth together.
The series is animated by Studio Jumondou. Takuya Satō serves as the chief director, with Kiyoto Nakajima as the series director. Takuya Yamanaka, credited with the original concept alongside Pony Canyon, is also responsible for the series composition and scripts. Character designs are handled by Chisato Kikunaga and Hitomi Kaiho, while Shun Narita is composing the music. The main cast performs the opening theme song, titled “Omoidebanashi” (Nostalgic Talk).
Expanding the Ensemble
Before these latest additions, a main cast had already been announced for Harmony of Mille-Feuille. This includes Mirai Ayase as Uta Kamaki (lead vocal), Yūko Natsuyoshi as Musubu Mayumori (first chorus), Kanoko Sudō as Airi Kojō (second chorus), Misato Matsuoka as Rei “Reirei” Konoe (third chorus), Miharu Hanai as Urū “Ururu” Miyazaki (voice percussion), and Haruka Aikawa as Yako “Kuma-chan” Kumai (bass). The anime also features additional cast members for the new group “Parabola,” including Moeka Koizumi as Mizuki Fujishiro, Asaka as Zoe Delaunay, Nao Tōyama as Kikka Sengoku, Yoshino Aoyama as Reira Tamaki, and KIYOZO as Karin Minami.
The inclusion of Iori Saeki, Mayumi Shintani, and Kaori Nazuka further enriches the cast, promising a diverse range of vocal talents and character portrayals for the upcoming Harmony of Mille-Feuille anime.
