The main female voice cast of 2026’s Tune In to the Midnight Heart anime has been revealed, as well as the main production staff. The previous trailer has also been updated to include the voice actors’ voices.
The heroines’ voice actors are:
• Momoko Seto as singer Rikka Inohana
• Rumi Okubo as voice actor Nene Himekawa
• Sayumi Suzushiro as VTuber Iko Kirino
• Miku Ito as announcer Shinobu Uzuki
For the staff credits, they include:
• Director: Masayuki Takahashi (Butareba -The Story of a Man Turned into a Pig)
• Series composer: Yukie Sugawara (Grandpa and Grandma Turn Young Again)
• Character designer: Tomoyuki Shitaya (2.5 Dimensional Seduction)
• Animation production: Gekkou
Tune In to the Midnight Heart is based on the manga by Masakuni Igarashi, which started in 2023 in Weekly Shonen Magazine and has eight tankobon volumes as of March 17, 2025 JST. Kodansha USA describes the premise as:
At the end of a difficult day, the haughty but purehearted rich kid Arisu found his only solace in the voice of another girl his age, who hosted a livestream under the pseudonym “Apollo.” Then, one day, the broadcasts stopped. Arisu has dedicated the years since then to finding Apollo’s true identity, and he’s narrowed it down to one particular high school. He transfers in as a student and figures it’ll be a cinch–but then discovers it could be any of the girls in the broadcasting club! And the real Apollo isn’t talking for reasons of her own! These four girls have no use for Arisu’s personality, but they each harbor dreams of using their voices to build a career, and they sure could use his money… Can the blunt and blustering Arisu buy his way into the club’s good graces, and find the real girl attached to his dream voice.
Source: NBCUniversal Anime/Music YouTube channel