intro:Akutsu Eita is a lonely, introverted mecha otaku.
Even he had a girl who secretly admired him.
She is Agatsuma Makina, a super beautiful and cheerful, popular gal.
One night, Makina appears at the entrance to Eita's house.
When a girlfriend suddenly reveals her naked body...
What was there was a different body of a machine than a human!
Makina is an AI robot who is made for sex but is restricted to access adult information.
Eita is a virgin who is germativist to women and is always kind to him.
The two of them begin living together, with no need to be exposed to the mechanisms!