Mayonaka Heart Tune

Back in middle school, the one voice that eased Arisu Yamabuki's loneliness belonged to an anonymous late-night broadcaster calling herself “Apollo.” Then the program suddenly vanished without explanation, leaving Arisu with one thing he still wants to tell her if he ever finds her.

Years later, his clues lead him to the newly co-ed Furin High School and its broadcasting club, where four girls pursue different dreams through their voices: announcing, singing, voice acting, and streaming. Arisu agrees to help them reach those goals in exchange for help finding Apollo, but the closer he gets to each voice, the harder the question becomes: which of them was the person who changed his life?