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.
[Written by MAL Rewrite]+ More
Characters & Voice Actors

Mima, Tokiko
Main
Ajou, Jinsaku
Supporting
Komoda, Aoi
Supporting
Sergei
Supporting
Tamari, Senichi
Supporting
Tataki, Shuichi
Supporting
Tsukiyama
Supporting
Tsurugi, Hikaru
SupportingRecommended for you
When They Cry: Rei
OVA
30m
Kiznaiver
TV
24m
Tekkaman Blade
TV
25m
Is This a Zombie?
TV
24m
Level E
TV
24m
Magical Girl Lyrical Nanoha Reflection
Movie
111m
Mardock Scramble: The Third Exhaust
Movie
68m
You're Under Arrest
OVA
30m
Birdy the Mighty: Decode
TV
24m
A Certain Magical Index
TV
23m
Tales of Demons and Gods
ONA
8m