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Season guide

Key the Metal Idol: Season 1

15 episodes Premiered Dec 16, 1994 Updated Nov 2, 2026

Tokiko Mima, nicknamed Key, is a seventeen-year-old girl living in the Japanese countryside who is a robot, despite her human-like appearance. When her 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. Key quickly becomes enamored with idol singer Miho Utsuse and wonders if becoming a singer will allow her

Previously on Key the Metal Idol

Season 1 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Tokiko Mima, nicknamed Key, is a seventeen-year-old robot girl living in the Japanese countryside with a human-like appearance.
  • ⚡ Following the death of her grandfather, Dr. Murao Mima, Key receives a dying message instructing her to make thirty thousand friends in order to become a real girl.
  • ⚡ Key pursues the goal of gaining the love of thousands and making enough friends by becoming a pop idol, drawing her toward idol singer Miho Utsuse.
  • ⚡ Miho Utsuse carries an ominous secret connecting her to Jinsaku Ajou, an old rival of Dr. Mima who is working on a breakthrough in robotic weaponry.
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Season overview

Tokiko Mima, nicknamed Key, is a seventeen-year-old girl living in the Japanese countryside who is a robot, despite her human-like appearance. When her 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. 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. However, Miho carries an ominous secret: she is connected to Jinsaku Ajou, an old rival of Dr. Mima trying to make a new breakthrough in robotic weaponry. As Key works to become a real girl, Ajou sets a dangerous plan into action, and it turns out there is much more to Key than meets the eye in this Japanese original video animation series released from December 1994 to June 1997.

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Season 1 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 1 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 1: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

33%
67%
Mytharc (5): Crucial lore & season climaxes
Core (10): Character development & subplots
Side Quest (0): Standalone / filler
S1·E1 Mytharc

Startup

Dec 16, 1994 · 25 min

As you might imagine, an innocent like Key gets into trouble pretty much the moment she arrives in Tokyo. Aimlessly wandering the streets, she's picked up by a 'photographer' for a

S1·E2 Core

Cursor I

Feb 17, 1995 · 25 min

As Key settles in as Sakura's temporary houseguest, we get to see a bit more of the other lead characters in action. There's Sakura's friend Shuichi, fan club president for the fam

S1·E3 Core

Cursor II

Mar 1, 1995 · 25 min

Key begins to fixate upon the idea of becoming a pop idol herself as the surest way to making 30,000 friends. In the meantime, Ajo's team are trying to determine whether she might

S1·E4 Core

Access

Apr 5, 1995 · 25 min

As if to confirm earlier hints that Key possesses a phenomenal power whose exact nature is hidden even from herself, this episode sees her disabling both PPORs and rescuing their s

S1·E5 Core

Scroll I

Jun 7, 1995 · 25 min

We begin to learn more of just what Ajo and his cronies are up to, and Sakura and Shuichi have a long chat about Key and what must have happened to her when she was young to make h

S1·E6 Core

Scroll II

Jul 5, 1995 · 25 min

Prince Snake-Eye convinces Key to come to his temple. The child of two of his followers is deathly ill, but their faith precludes medical intervention... so he hopes that Key can c

S1·E7 Mytharc

Run

Aug 2, 1995 · 25 min

Yes, it's the conclusion to the first 'big showdown' episode, and as such works very well as the final episode on this disc. I don't want to spoil anything, so let's just say that

S1·E8 Core

Go to...

Feb 7, 1996 · 25 min

Sakura, apparently content to put her own dreams on the back burner for a while, creates 'Production Key'... an agency devoted solely to helping Key reach pop idol status. She trie

S1·E9 Core

Return

Mar 6, 1996 · 25 min

Everyone's fave arch-henchman 'D' is still convalescing from his battle at the end of the previous DVD, Awakening (Volume 1), but Ajo – not being what you'd call a kind-hearted emp

S1·E10 Core

Bug

Apr 3, 1996 · 25 min

Ah, this is a really satisfying episode... so much so that you end up wishing the whole series ran at this pace. First, you've got Tsurugi being Tsurugi. Then there's Ajo trying to

S1·E11 Mytharc

Save

May 2, 1996 · 25 min

Apparently all the excitement of the previous episode overwhelmed both the show's author and Shuichi alike, because abruptly he's back in Tokyo and 'a month has passed'. (No, this

S1·E12 Core

Virus I

Jul 3, 1996 · 25 min

The story machinery starts grinding down towards the last of the TV-length Key episodes. Shuichi catches Prince Snake-Eye in the act of sabotaging Key's 'career', but this really i

S1·E13 Core

Virus II

Aug 7, 1996 · 25 min

Much like the first in this set, everything is geared to reach a climax of sorts in this last episode of the disc. Again, it would be rubbish of me to ruin all the fun for you. Let

S1·E14 Mytharc

System

Mar 21, 1997 · 97 min

Exposition and backstories. All mysteries are revealed, the significance of the photograph found in Tomyo village, the life story of Doc, how the child Tokiko was replaced by the r

S1·E15 Mytharc

Exit

Jun 18, 1997 · 100 min

Key's friends rally for the final battle, but if they go against Ajo will they all make it out alive? And will Key be a living human at the end, or will she make a different choice

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