In the year 2033 the kingdom of Rari experienced the rise of their robots gaining sentience, their response?
releasing a computer virus which killed a ton of robots.
They let the survivors live and remade the robots they lost this time without the intelligence.
Carla and Mary, both robots, open a diner in the downtown of the kingdom to which a soldier visits often on his way to work, also their only customer, Sebastian! Who reluctantly befriends them.