Seoul in 2050, where android become as common as automobile.
‘Dojin’, a high school student who is more ordinary than anyone else, lives with a maid android named, ‘San’.
One day, on DoJin’s 17th birthday, a birthday gift from Dojin’s dead sister arrives which is android Nano, the world’s strongest weapon but Dojin thinks and accepts Nano as he thinks Nano is an educational android.
Dojin started to live with Nano as he believes that there must be reason why his older sister sent Nano to him, But many unexpected accidents happened to Dojin and he is threatened by MSA which is a global android company
Will Dojin and Nano be able to dig into MSA’s threats and face a peaceful life again?