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Key the Metal Idol

5.1
12 February 2026 · Drama, Sci-Fi & Fantasy, Animation, Action & Adventure · mins

Tokiko Mima, nicknamed "Key," is a 17-year-old girl living in the Japanese countryside who, despite her human-like appearance, is a robot. When Key's grandfather Dr. Murao Mima passes away, he leaves her a dying message, telling her that she can become a real girl if she is able to make thirty thousand friends. Thus, Key moves from the quiet Mamio Valley to the busy streets of Tokyo, where she soon runs into her childhood friend Sakura Kuriyagawa. Key quickly becomes enamored with idol singer Miho Utsuse and wonders if becoming a singer will allow her to make the amount of friends needed for her to become human. But Miho carries a ominous secret: she is connected to Jinsaku Ajou, an old rival of Dr. Mima trying to make new a breakthrough in robotic weaponry. As Key works to become a real girl, Ajou sets a dangerous plan into action, and it turns out there's much more to Key than meets the eye.

  • Junko Iwao
    Junko Iwao
    Tokiko "Key" Mima (voice)
  • Hiroshi Yanaka
    Hiroshi Yanaka
    Tomoyo Wakagi (voice)
  • Jurota Kosugi
    Jurota Kosugi
    Sergei / "D" (voice)
  • Miki Nagasawa
    Miki Nagasawa
    Sakura Kuriyagawa (voice)
  • Show Hayami
    Show Hayami
    Jinsaku Ajo (voice)
  • Toshiyuki Morikawa
    Toshiyuki Morikawa
    Shuuichi Tataki (voice)

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